A glass sheet bending furnace and production line

Abstract

A kind of glass plate bending heating furnace and production line, heating furnace includes furnace body and heating chamber, multiple horizontal roller beds are arranged at intervals from the entrance end to the exit end of heating chamber, multiple inclined roller bed units are arranged at intervals along the glass conveying direction on one side or both sides of glass conveying direction, each inclined roller bed unit includes a inclined roller bed and an inclined roller bed control device, one end of inclined roller bed is arranged inside heating chamber and is located between adjacent horizontal roller bed, the other end is arranged outside heating chamber and is connected with inclined roller bed control device;Inclined roller bed control device is used to control the connected inclined roller bed to realize the following actions: lifting along set direction, up and down swing and rotation;Inclined roller bed is in inclined state when participating in glass plate bending forming;The production line includes upper piece table, the heating furnace and lower piece table.The utility model can adapt to different glass types, size, thickness, arch height and different glass production environment and production process.

Description

Technical Field

[0001] This utility model belongs to the field of glass bending and forming technology, specifically relating to a glass plate bending heating furnace and production line. Background Technology

[0002] If flat glass is directly formed into a deeply curved shape or a shape with a large arch using a mold or other means, the glass is prone to cracking, and the curved shape of the glass sheet will become inaccurate. For example, when it is necessary to make "︺" shaped glass, that is, glass with a horizontal middle part and curved sides, it is difficult to obtain a product with an accurate shape using conventional glass bending and forming equipment.

[0003] Patent CN1262499C discloses an apparatus and method for bending heated glass sheets using rollers. This solution can solve the aforementioned problems and form the "︺"-shaped glass. However, its bending roller assembly is controlled in groups, with the bending rollers connected to bending support ribs, and the shape of the bending support ribs is fixed. The bending roller assembly can only be shaped into a predetermined curved surface by adjusting the height of the last bending roller. The tilt angle of each bending roller is formed by a pre-designed and installed mechanical structure, resulting in fixed tilt angle and height differences between adjacent bending rollers. This leads to poor adaptability; it cannot adaptively adjust the tilt angle and height of each bending roller, as well as the tilt angle differences between adjacent bending rollers, based on differences in glass type, size, thickness, arch height, production environment, and production process. This means the device can only produce glass of a certain arch height and size, and cannot be adaptively adjusted according to the production environment and process. Furthermore, the fixed structure of the aforementioned device results in poor device flexibility and excessive reliance on the precision of equipment component processing and installation. Utility Model Content

[0004] The purpose of this utility model is to provide a glass plate bending heating furnace and production line, which realizes the bending or pre-bending of glass inside the heating furnace, and has high bending accuracy and good equipment adaptability, and can adapt to different glass types, sizes, thicknesses, arch heights and different glass production environments and processes.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a glass plate bending heating furnace, comprising a furnace body and a heating chamber enclosed by the furnace body, wherein multiple horizontal roller conveyors for horizontally conveying glass are arranged at intervals from the inlet end to the outlet end of the heating chamber; characterized in that: multiple inclined roller conveyor units are arranged on one or both sides of the glass conveying direction, the multiple inclined roller conveyor units are arranged at intervals along the glass conveying direction, each inclined roller conveyor unit includes an inclined roller and an inclined roller conveyor control device, one end of the inclined roller is located inside the heating chamber and between two adjacent horizontal rollers, the other end of the inclined roller is located outside the heating chamber and connected to the inclined roller conveyor control device; the inclined roller conveyor control device is used to control the connected inclined roller to perform the following actions: lifting and lowering in a set direction, swinging up and down to adjust the tilt angle, and rotating; The inclined roller conveyor is inclined when participating in the bending and forming of the glass plate, and the end of the inclined roller conveyor inside the heating chamber is lower than the horizontal roller conveyor, while the end of the inclined roller conveyor outside the heating chamber is higher than the horizontal roller conveyor.

[0006] Its beneficial effects are: In this utility model, each inclined roller is adjusted by a corresponding inclined roller control device, that is, the inclined angle and height of each inclined roller can be adjusted independently, making the equipment highly flexible and adaptable. The height and angle of each inclined roller, as well as the angle difference between two adjacent inclined rollers, can be arbitrarily adjusted according to the differences in glass type, size, thickness, arch height, production environment and production process, which can provide more flexible configuration for glass plate bending production, thus providing richer possibilities.

[0007] In addition, one end of the inclined roller conveyor is located inside the heating chamber, while the other end connected to the inclined roller conveyor control device is located outside the heating chamber. This ensures that the inclined roller conveyor control device is not in the high-temperature environment of the heating chamber, thus enhancing its service life. It also allows the inclined roller conveyors to be arranged more densely, and the hot glass remains in the heating chamber throughout the bending process, which is beneficial for the bending of the glass.

[0008] Furthermore, the furnace body also includes an inclined roller support, with the upper end of the inclined roller support close to the heating furnace and the lower end of the inclined roller support away from the heating furnace. The inclined roller control device is slidably connected to the inclined roller support.

[0009] The beneficial effect is that if the inclined roller support is vertical or its upper end is far from the heating furnace and its lower end is close to the heating furnace, when the inclined roller control device lifts one end of the inclined roller, the other end of the inclined roller will retract outward from the heating furnace, resulting in the glass plate not being effectively supported. Therefore, in this invention, the upper end of the inclined roller support is close to the heating furnace and the lower end is far from the heating furnace, providing an inclined surface for the inclined roller control device. When the inclined roller control device lifts the inclined roller, it can compensate for the distance the inclined roller retracts from one end inside the heating furnace due to the increase in the height and angle of the inclined roller.

[0010] Furthermore, the inclined roller conveyor control device includes an inclined roller conveyor lifting device and an inclined roller conveyor adjustment drive device connected together; the inclined roller conveyor lifting device is slidably connected to the inclined roller conveyor support and is used to control the inclined roller conveyor to rise and fall along the inclined roller conveyor support; the inclined roller conveyor adjustment drive device is connected to the inclined roller conveyor and is used to control the rotation and up-and-down swing of the inclined roller conveyor.

[0011] Its beneficial effects are: the lifting and lowering of the inclined roller conveyor is controlled by the inclined roller conveyor lifting device, and the tilt angle adjustment and rotation of the inclined roller conveyor are controlled by the inclined roller conveyor adjustment drive device. The inclined roller conveyor lifting device and the inclined roller conveyor adjustment drive device have clear division of labor, do not affect each other, and have a compact structure.

[0012] Specifically, it also includes a frame, the inclined roller conveyor support is fixedly mounted on the frame, the inclined roller conveyor lifting device includes a lifting rod, a lifting drive motor and a lifting slider, one end of the lifting rod is hinged to the lifting slider, one side of the lifting slider is slidably connected to the inclined roller conveyor support, the other side of the lifting slider is connected to the inclined roller conveyor adjustment drive device, the lifting drive motor is mounted on the frame, and the lifting drive motor is used to control the lifting rod to drive the inclined roller conveyor adjustment drive device to move up and down along the inclined roller conveyor support.

[0013] Its beneficial effects are: multiple inclined roller conveyor supports connected together on a single frame simplify the frame structure, making the overall equipment more stable and easier to control. The lifting slider, driven by a lifting rod, slides up and down along the inclined roller conveyor support, and the lifting slider is connected to the inclined roller conveyor adjustment drive device, providing guidance and support for the lifting of the inclined roller conveyor.

[0014] Furthermore, the lifting drive is rotatably mounted on the frame, and the lifting rod is located above the inclined roller conveyor adjustment drive device.

[0015] Its beneficial effects are: when the lifting rod drives the inclined roller conveyor adjustment drive device and the inclined roller conveyor to rise and fall, it may swing closer to or further away from the heating furnace due to installation position or installation accuracy. However, after the lifting drive motor that drives the lifting rod is rotated and connected to the frame, the lifting rod can rotate freely without deformation, thus ensuring the strength and service life of the lifting rod.

[0016] Alternatively, the inclined roller conveyor support may be a straight support or an arc support, and multiple supports may be arranged at intervals along the glass conveying direction.

[0017] Its beneficial effect is that straight or curved supports can provide reliable guidance and support for the lifting of the inclined roller conveyor.

[0018] Specifically, the inclined roller conveyor adjustment drive device includes an inclined roller conveyor angle adjustment mechanism and an inclined roller conveyor rotation mechanism. The inclined roller conveyor rotation mechanism is connected to the inclined roller conveyor angle adjustment mechanism, and the inclined roller conveyor is connected to the inclined roller conveyor rotation mechanism.

[0019] Its beneficial effect is that the angle adjustment and rotation functions of the inclined roller conveyor are controlled by corresponding mechanisms, and they do not affect each other.

[0020] Furthermore, the inclined roller conveyor angle adjustment mechanism includes an angle adjustment motor and a rotating component. The rotating component is rotatably connected to the lifting slider. The output shaft of the angle adjustment motor is connected to the rotating component, controlling the rotating component to rotate and drive the inclined roller conveyor to swing up and down. The inclined roller conveyor rotation mechanism is fixedly connected to the rotating component.

[0021] Its beneficial effect is that it proposes an implementation method for the inclined roller conveyor angle adjustment mechanism.

[0022] Furthermore, an angle limiting component is provided between the rotating component and the lifting slider, including a limiting groove and a limiting post. The limiting groove is arc-shaped and centered on the rotation axis of the rotating component, and the limiting post is slidably disposed in the limiting groove.

[0023] Its beneficial effects are: the limiting hole and the limiting post can limit the range of rotation of the rotating assembly and provide guidance for the rotation.

[0024] As one embodiment of the rotating assembly, the rotating assembly includes a worm and a worm wheel seat. The worm wheel seat is provided with worm teeth that can mesh with the worm. The worm wheel seat is fixed on the inclined roller conveyor rotating mechanism. The worm is drively connected to the output shaft of the angle adjusting motor.

[0025] Its beneficial effect is that the inclined roller conveyor, through the cooperation of the worm and worm gear in the angle adjustment mechanism, drives the worm wheel seat to rotate, which in turn drives the inclined roller conveyor rotation mechanism to rotate, thereby driving the inclined roller conveyor to adjust the inclination angle.

[0026] As another embodiment of the rotating component, the rotating component is a rotating block, which is connected to the output shaft of the angle adjustment motor and is fixed on the inclined roller conveyor rotation mechanism.

[0027] Its beneficial effect is that the angle adjustment motor can directly drive the rotating block to rotate, thereby driving the inclined roller to adjust the inclination angle.

[0028] Specifically, the inclined roller conveyor rotation mechanism includes a bearing housing and a rotary drive motor. The bearing housing is fixedly connected to the rotating assembly, and the rotary drive motor is mounted on the bearing housing and connected to the inclined roller conveyor passing through the bearing housing to drive the inclined roller conveyor to rotate.

[0029] Its beneficial effect is that it proposes the specific structure of the inclined roller conveyor rotation mechanism.

[0030] Preferably, the furnace body is provided with elongated holes for the inclined roller conveyor to pass through, and the elongated holes are arranged one-to-one with the inclined roller conveyor. It also includes a furnace body insulation component for sealing multiple elongated holes. The furnace body insulation component includes an upper insulation component above the inclined roller conveyor and a lower insulation component below the inclined roller conveyor. The upper insulation component and the lower insulation component have the same structure, including multiple insulation strips and multiple insulation lifting rods. The insulation strips are located in the elongated holes. One end of the insulation lifting rod is connected to the end of the insulation strip that is away from the inclined roller conveyor, and the other end of the insulation lifting rod is connected to the insulation lifting drive motor.

[0031] Its beneficial effects are: the setting of the elongated holes provides room for the lifting and tilting of the inclined roller conveyor, and the furnace body insulation components can seal the top and bottom of the inclined roller conveyor, reducing the heat loss of the furnace body.

[0032] As one embodiment of the furnace body insulation component, multiple insulation lifting rods located above or below the inclined roller conveyor are connected to the same insulation crossbar, and the insulation crossbar is connected to an insulation lifting drive motor.

[0033] Its beneficial effect is that the synchronous lifting and lowering of multiple insulation strips on the same side of the inclined roller conveyor can improve the adjustment efficiency of the lifting and lowering of the insulation strips.

[0034] Furthermore, one end of the insulation crossbar near the furnace inlet is rotatably connected to the furnace body.

[0035] Its beneficial effects are: when the insulation lifting drive motor drives each insulation lifting unit through the insulation crossbar, it rotates around the rotation axis of the crossbar, so that the lifting distance of the insulation strip near the inlet end of the heating furnace is small, and the lifting distance of the insulation strip near the outlet end of the heating furnace is large. This can effectively cooperate with the lifting of the inclined roller conveyor to seal the long strip hole as much as possible and effectively reduce the heat loss in the heating furnace.

[0036] Preferably, the frame includes a movable frame and a frame base, the inclined roller support is fixed on the movable frame, the movable frame is slidably connected to the frame base, and the sliding direction is perpendicular to the glass conveying direction.

[0037] Its advantages are: the sliding connection between the movable frame and the machine base allows the movable frame to move towards or away from the heating furnace, thereby adjusting the distance between the inclined roller conveyor units on both sides of the heating furnace, and thus enabling the production of different glass sizes. Moving the movable frame away from the heating furnace until the inclined roller conveyor is completely removed from the furnace also facilitates the maintenance and replacement of the inclined roller conveyor units.

[0038] The beneficial effects of the glass bending heating furnace proposed in this invention are as follows: Each inclined roller can be controlled independently, allowing for individual adjustment of its height and inclination angle, resulting in high flexibility and adaptability. The height and angle of each inclined roller, as well as the angle difference between adjacent inclined rollers, can be arbitrarily adjusted according to differences in glass type, size, thickness, arch height, production environment, and production process, providing more flexible configurations for glass bending production and thus offering richer possibilities. For example, the angle difference between adjacent inclined rollers at the front end of the conveying direction can be smaller, while the angle difference between adjacent inclined rollers at the rear end of the conveying direction can be larger, or vice versa. Furthermore, the inclination angles of the opposing inclined rollers on both sides of the heating furnace can be different, thereby producing glass with different curvatures and arch heights on both sides. In addition, each inclined roller can be adjusted independently, thus eliminating the need for high processing and installation precision in the equipment components.

[0039] This utility model also proposes a glass plate production line, including an loading table, a glass plate bending heating furnace and a unloading table arranged sequentially along the process route.

[0040] Furthermore, the production line also includes bending equipment, which is arranged between the glass plate bending heating furnace and the unloading table.

[0041] Its beneficial effect is that the bending equipment bends and shapes the glass pre-bent in the heating furnace, thereby improving the glass forming accuracy.

[0042] Furthermore, the production line also includes cooling equipment, which is located between the bending equipment and the unloading table.

[0043] Its beneficial effect is that it can be used to produce tempered curved glass.

[0044] Furthermore, the production line also includes cooling equipment, which is located between the glass plate bending heating furnace and the unloading table.

[0045] Its beneficial effect is that it can be used to produce tempered curved glass.

[0046] The beneficial effects of the glass plate production line proposed in this utility model are: the glass plate bending heating furnace described above can be applied to different production processes, producing a variety of curved glass of different specifications, providing more flexible configurations for glass plate bending production, and thus offering richer possibilities. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is a side view of the glass plate bending heating furnace described in this utility model; Figure 2 This is an end view of the glass plate bending heating furnace described in this utility model in the glass conveying direction; Figure 3 This is a schematic diagram of the installation structure of the inclined roller conveyor unit in this utility model; Figure 4 This is a schematic diagram of the inclined roller conveyor lifting device in this utility model; Figure 5 This is a schematic diagram of the inclined roller conveyor adjustment drive device in this utility model; Figure 6 This is a schematic diagram of the furnace wall structure in this utility model; The diagram shows: 1. Furnace body, 2. Heating chamber, 3. Horizontal roller conveyor, 4. Inclined roller conveyor, 5. Inclined roller conveyor unit, 6. Frame, 601. Moving frame, 602. Frame base, 603. Frame slide rail, 604. Moving frame slider, 605. Moving frame wheels, 7. Inclined roller conveyor support, 8. Slide rail, 9. Inclined roller conveyor control device, 10. Inclined roller conveyor lifting device, 1001. Lifting rod, 1002. Lifting drive motor, 1003. Rotating seat, 10 04. Lifting slider; 11. Inclined roller conveyor adjustment drive device; 1101. Angle adjustment motor; 1102. Worm gear seat; 1103. Rotating shaft; 1104. Limiting groove; 1105. Limiting column; 1106. Bearing seat; 1107. Rotary drive motor; 12. Furnace body insulation component; 1201. Insulation strip; 1202. Insulation lifting rod; 1203. Insulation lifting drive motor; 1204. Insulation crossbar; 1205. Crossbar rotating shaft; 13. Long strip hole. Detailed Implementation

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention in any way.

[0050] Example 1: As Figure 1 , 2 As shown, a glass plate bending heating furnace includes a furnace body 1 and a heating chamber 2 enclosed by the furnace body 1. The two ends of the heating chamber 2 are the inlet end and the outlet end, respectively. From the inlet end to the outlet end, multiple horizontal rollers 3 are arranged at intervals along the glass conveying direction in the heating chamber 2, which are on the same horizontal plane for horizontal glass conveying. Therefore, the upper surfaces of the multiple horizontal rollers 3 form a horizontal conveying surface for conveying glass. Multiple inclined roller units 5 are arranged on both sides of the glass conveying direction and are arranged at intervals along the glass conveying direction. Each inclined roller unit 5 includes an inclined roller 4 and an inclined roller control device 9. One end of the inclined roller 4 is located in the heating chamber 2 and between two adjacent horizontal rollers 3. The other end of the inclined roller 4 is located outside the furnace body 1 and is connected to the corresponding inclined roller control device 9. The inclined roller control device 9 is used to control the inclined roller 4 connected to it to achieve the following actions: (1) lifting and lowering the inclined roller 4; (2) swinging the inclined roller 4 up and down to achieve an inclined state and adjusting the inclined angle; (3) rotating the inclined roller 4. The lifting and lowering of the inclined roller conveyor 4 provides swing space, allowing it to swing to the desired tilt angle. After reaching the tilted state through lifting and swinging, the inclined roller conveyor 4 can obliquely intersect the horizontal conveying surface formed by multiple horizontal roller conveyors 3. The end of the inclined roller conveyor 4 located inside the heating chamber 2 is lower than the horizontal roller conveyors 3, while the end located outside the furnace body 1 is higher than the horizontal roller conveyors 3. The rotation of the inclined roller conveyor 4 facilitates glass transport, reduces friction with the glass, and prevents scratches on the glass surface.

[0051] Multiple inclined roller conveyors 4 on the same side of the glass conveying direction form an inclined conveying surface. The horizontal conveying surface and the inclined conveying surfaces on both sides of the glass conveying direction together form a glass forming conveying surface for bending and conveying glass.

[0052] Since each inclined roller 4 is individually controlled by its corresponding inclined roller control device 9, the state of the inclined roller 4 can be adjusted individually to achieve that multiple inclined rollers 4 on the same side of the glass conveying direction have the same inclination angle or have not completely the same inclination angle, so as to meet the forming requirements of different shaped glass.

[0053] Alternatively, multiple inclined roller conveyor units 5 may be arranged in a portion of the area between the inlet and outlet ends of the furnace body 1, the portion of the area being close to the outlet end of the furnace body 1; or, multiple inclined roller conveyor units 5 may be arranged in the entire area between the inlet and outlet ends of the furnace body 1.

[0054] like Figure 3 As shown, the heating furnace also includes multiple parallel inclined roller support brackets 7. Each inclined roller support 7 is a straight rod, and the multiple inclined roller support brackets 7 are fixed to the frame 6. The upper end of each inclined roller support bracket 7 is close to the heating furnace, and the lower end is away from the heating furnace. A slide rail 8 is provided on the side of each inclined roller support 7 facing the heating furnace. The length direction of the slide rail 8 is parallel to the length direction of the inclined roller support 7, therefore the multiple slide rails 8 on the multiple inclined roller support brackets 7 are also parallel to each other. The inclined roller conveyor 4 is arranged between adjacent inclined roller support brackets 7, and the inclined roller conveyor control device 9 is slidably connected to the slide rails 8 on the inclined roller support bracket 7.

[0055] Continue to refer to Figure 3 As shown, the inclined roller conveyor control device 9 includes an inclined roller conveyor lifting device 10 and an inclined roller conveyor adjustment drive device 11. The inclined roller conveyor adjustment drive device 11 is connected to the inclined roller conveyor 4 and is used to control the rotation and tilt angle adjustment of the inclined roller conveyor 4. The inclined roller conveyor adjustment drive device 11 is connected to the inclined roller conveyor lifting device 10. The lifting component of the inclined roller conveyor lifting device 10 is slidably connected to the slide rail 8. The inclined roller conveyor lifting device 10 drives the inclined roller conveyor adjustment drive device 11 and the inclined roller conveyor 4 to move up and down along the slide rail 8, providing room for the tilting of the inclined roller conveyor 4.

[0056] like Figure 4 As shown, the inclined roller conveyor lifting device 10 includes a lifting rod 1001, a lifting drive motor 1002, and a lifting slider 1004. The lifting drive motor 1002 drives the lifting rod 1001 to move up and down. The lower end of the lifting rod 1001 is rotatably connected to the lifting slider 1004, which slides along the slide rail 8. The lifting slider 1004 is also fixedly connected to the inclined roller conveyor adjustment drive device 11. The up-and-down movement of the lifting rod 1001 can drive the inclined roller conveyor adjustment drive device 11 to move up and down along the slide rail 8. The lifting drive motor 1002 can be a motor, cylinder, hydraulic cylinder, or other drive mechanism, preferably a motor. The lifting rod 1001 is a motor-driven lead screw or a motor-driven telescopic rod. Therefore, the driving of the lifting rod 1001 by the lifting drive motor 1002 is a conventional form in the mechanical field, and users can choose to use it according to their own circumstances.

[0057] The lifting slider 1004 is simultaneously slidably connected to two adjacent slide rails 8, allowing the corresponding inclined roller conveyor adjustment drive device 11 to be located between two inclined roller conveyor supports 7, facilitating the structural arrangement of the inclined roller conveyor adjustment drive device 11. Preferably, to achieve the slidable connection between the lifting slider 1004 and the two adjacent slide rails 8, the lifting slider 1004 is provided with a T-shaped component. The two lateral ends of the T-shaped component are slidably connected to the adjacent slide rails 8, and the vertical end of the T-shaped component is located between the two inclined roller conveyor supports 7 and connected to the inclined roller conveyor adjustment drive device 11. For two adjacent inclined roller conveyor control devices 9, the T-shaped component of the lifting slider 1004 of one inclined roller conveyor control device 9 is arranged horizontally at the top and vertically at the bottom, i.e., in a regular T-shape; the T-shaped component of the lifting slider 1004 of the other inclined roller conveyor control device 9 is arranged vertically at the top and horizontally at the bottom, i.e., inverted T-shape. This allows an inclined roller conveyor adjustment drive device 11 to be arranged between any two adjacent inclined roller conveyor supports 7, and the structural arrangement is more compact. In this embodiment, the number of inclined roller conveyor supports 7 is one more than the number of inclined roller conveyor control devices 9.

[0058] Alternatively, instead of a slide rail 8, a groove can be used on the inclined roller conveyor support 7, with the lifting slider 1004 sliding up and down along the groove. Alternatively, the lifting slider 1004 can be slidably mounted on the inclined roller conveyor support 7, in which case the number of inclined roller conveyor supports 7 is the same as the number of inclined roller conveyor control devices 9. Or, the slide rail 8 can be located on the side of the inclined roller conveyor support 7, and the lifting slider 1004 can be slidably mounted on the slide rail 8, in which case the number of inclined roller conveyor supports 7 is the same as the number of inclined roller conveyor control devices 9.

[0059] Preferably, when the lifting rod 1001 drives the inclined roller conveyor adjustment drive device 11 and the inclined roller conveyor 4 to rise and fall, since the lifting and falling is along the slide rail 8 on the inclined roller conveyor support 7, and the inclined roller conveyor support 7 is inclined, in order to leave space for the arrangement of other parts of the heating furnace, the lifting rod 1001 is set away from the heating furnace relative to the inclined roller conveyor support 7, and the two are not set on a straight line. At this time, the lifting rod 1001 may get stuck during the lifting and falling process. In order to avoid the jamming situation, a rotating seat 1003 is fixed on the upper surface of the frame 6, and a rotating shaft is provided on the lifting drive motor 1002. The two ends of the rotating shaft are inserted into the holes of the rotating seat 1003, so that the rotating shaft can rotate freely. Therefore, the lifting rod 1001 can be tilted at any angle, avoiding the lifting rod 1001 from getting stuck during the lifting and falling, ensuring the smooth lifting and falling of the inclined roller conveyor 4, ensuring the strength and service life of the lifting rod 1001, and at the same time reducing the installation accuracy requirements of the lifting rod 1001, so that the lifting rod 1001 does not need to be completely parallel to the inclined roller conveyor support 7. Moreover, the rotating shaft is located in the middle of the lifting rod 1001, which makes the swing space at the upper end of the lifting rod 1001 smaller and reduces the space occupied.

[0060] In other embodiments, when the lifting rod 1001 and the inclined roller support 7 are on the same straight line, the lifting rod 1001 remains on that straight line during lifting and lowering, thus eliminating the need for the rotating seat 1003. However, this solution occupies a large space and is inconvenient for the arrangement of other components of the heating furnace and for the installation and maintenance of the heating furnace.

[0061] like Figure 5 As shown, the inclined roller conveyor adjustment drive device 11 includes an inclined roller conveyor angle adjustment mechanism and an inclined roller conveyor rotation mechanism. The inclined roller conveyor rotation mechanism is connected to the inclined roller conveyor angle adjustment mechanism, and the inclined roller conveyor 4 is connected to the inclined roller conveyor rotation mechanism.

[0062] In this embodiment, the inclined roller conveyor angle adjustment mechanism includes an angle adjustment motor 1101, a worm gear, and a worm wheel seat 1102. The worm wheel seat 1102 is rotatably connected to the lifting slider 1004 via a rotating shaft 1103, and is fixedly connected to the inclined roller conveyor rotation mechanism. The worm wheel seat 1102 is provided with worm teeth for meshing with the worm gear. The angle adjustment motor 1101 is connected to the worm gear, driving the worm gear to rotate, which in turn drives the worm wheel seat 1102 to rotate relative to the lifting slider 1004. The inclined roller conveyor angle adjustment mechanism also includes a slidingly fitted limiting groove 1104 and a limiting post 1105. The limiting groove 1104 is an arc-shaped groove with the rotating shaft 1103 as its center. The limiting groove 1104 is disposed on the worm wheel seat 1102, and the limiting post 1105 passes through the limiting groove 1104 and is disposed on the lifting slider 1004. The two ends of the limiting groove 1104 are the two extreme positions of the rotation of the worm wheel seat 1102. When the inclined roller conveyor angle adjustment mechanism is in its initial state, the limiting post 1105 is located at the lower end of the limiting groove 1104, and the inclined roller conveyor 4 is in a horizontal state. When the limiting post 1105 is located at the upper end of the limiting groove 1104, the inclined roller conveyor 4 has the maximum inclination angle. When the limiting post 1105 is located between the two ends of the limiting groove 1104, the inclined roller conveyor 4 is at the inclination angle corresponding to that position. Thus, the angle adjustment motor 1101 can be used to adjust the inclined roller conveyor 4 from a horizontal state to an inclined state and to adjust different inclination angles within the inclination range.

[0063] It is understandable that the limiting groove 1104 and the limiting post 1105 can also be interchanged to achieve the same function of limiting and adjusting the tilt amplitude of the inclined roller conveyor 4.

[0064] In the above embodiments, the worm and worm gear seat 1102 form a rotating assembly driven by the angle adjusting motor 1101. In other embodiments, the rotating assembly may also be a rotating block connected to the output shaft of the angle adjusting motor 1101, and the rotating block is fixed on the inclined roller conveyor rotation mechanism.

[0065] The inclined roller conveyor rotation mechanism includes a bearing housing 1106 and a rotary drive motor 1107. The bearing housing 1106 is fixedly connected to the worm gear housing 1102. The rotary drive motor 1107 is fixed at one end of the bearing housing 1106. The inclined roller conveyor 4 passes through the bearing housing 1106 from the other end and engages with the bearing therein. The inclined roller conveyor 4 is drively connected to the output shaft of the rotary drive motor 1107. The rotary drive motor 1107 drives the inclined roller conveyor 4 to rotate.

[0066] When adjusting the inclined roller conveyor 4 using this invention, the height of the corresponding inclined roller conveyor 4 can be adjusted first by the inclined roller conveyor lifting device 10 to provide adjustment space for the angle adjustment of the inclined roller conveyor 4; then the inclined roller conveyor 4 can be swung by the inclined roller conveyor angle adjustment mechanism of the inclined roller conveyor adjustment drive device 11 to adjust the inclined roller conveyor 4 to the inclined state and achieve the target tilt angle.

[0067] Furthermore, the multiple inclined roller conveyor supports 7 are fixed to the movable frame 601 of the frame 6 by means of screwing, welding, etc., and the bottom of the movable frame 601 is movably connected to the frame base 602. The frame base 602 is a frame structure, and a frame slide rail 603 is provided perpendicular to the glass conveying direction of the heating furnace. The bottom of the movable frame 601 is provided with a movable frame slider 604, which is slidably connected to the frame slide rail 603, so that the movable frame 601 can move towards or away from the heating furnace, thereby adjusting the distance between the inclined roller conveyor units 5 on both sides of the heating furnace, and thus enabling the production of glass of different sizes. Moving the movable frame 601 away from the heating furnace until the inclined roller conveyor 4 is completely out of the heating furnace also facilitates the maintenance of the inclined roller conveyor unit 5 and the replacement of the inclined roller conveyor 4.

[0068] A crossbeam is also provided inside the frame base 602, parallel to the frame slide rail 603. The bottom of the movable frame 601 is also provided with movable frame wheels 605, driven by corresponding motors, which roll along the crossbeam to achieve automatic movement of the movable frame 601. Preferably, a rack can also be provided on the crossbeam, and the corresponding movable frame wheels 605 are gears that can mesh with the rack. During the movement of the movable frame 601, the self-locking of the gears and rack can be used to fix the position of the movable frame 601.

[0069] In other embodiments, multiple frames may be provided, each frame being connected to a corresponding inclined roller conveyor support, and the movable frame and frame base of the multiple frames being connected one-to-one.

[0070] In this invention, part of the inclined roller conveyor 4 is located inside the furnace body 1, and the other part is located outside the furnace body 1. Therefore, holes need to be made in the furnace wall for the inclined roller conveyor 4 to pass through. Since the inclined roller conveyor 4 needs to be raised and lowered for height adjustment, the holes in the furnace wall should be elongated holes. This requires sealing and heat preservation of the holes above and below the inclined roller conveyor 4 in the elongated holes. To this end, this embodiment also proposes a corresponding furnace body heat preservation component.

[0071] The furnace body insulation assembly includes an upper insulation assembly located above the inclined roller conveyor 4 and a lower insulation assembly located below the inclined roller conveyor 4. The upper and lower insulation assemblies have the same structure, only their orientations are opposite. (See attached diagram.) Figure 6 The structure of the upper furnace body insulation component shown is described using this example; the structure of the lower insulation component will not be repeated. The furnace body insulation component 12 includes multiple insulation strips 1201, multiple insulation lifting rods 1202, and an insulation lifting drive motor 1203. The multiple insulation strips 1201 and multiple insulation lifting rods 1202 are arranged in a one-to-one correspondence. The side wall of the furnace body 1 has multiple elongated holes 13 for the inclined roller conveyor 4 to pass through. Each elongated hole 13 contains two insulation strips 1201, located above and below the inclined roller conveyor 4 within the elongated hole 13, respectively. The end of the insulation strip 1201 furthest from the inclined roller conveyor 4 is connected to the insulation lifting rod 1202. Multiple insulation lifting rods 1202 are connected to the same insulation crossbar 1204. The insulation crossbar 1204 is connected to the insulation lifting drive motor 1203. The insulation lifting drive motor 1203 drives the insulation lifting rods 1202 and insulation strips 1201 to rise and fall through the insulation crossbar 1204, so as to provide lifting space for the inclined roller conveyor 4 and seal the elongated hole 13.

[0072] Furthermore, since the tilting angle of each inclined roller conveyor 4 in this invention can be adjusted independently, and the glass near the outlet bends more when it is bent, the tilting angle of the inclined roller conveyor 4 gradually increases along the glass conveying direction. This results in different lifting heights for each inclined roller conveyor 4, and the greater the tilting angle of the inclined roller conveyor 4, the greater the height it needs to be raised. This requires that the insulation strip 1201 used to seal the elongated hole 13 should also be raised and lowered in accordance with the height of the inclined roller conveyor 4, thus requiring multiple insulation strips 1201 to have different lifting heights. To achieve this goal, a crossbar rotation shaft 1205 is provided at one end of the insulation crossbar 1204 near the furnace inlet. The crossbar rotation shaft 1205 is rotatably connected to the furnace body 1. When the insulation lifting drive 1203 drives each insulation strip 1201 to rise and fall through the insulation crossbar 1204, it will rotate around the crossbar rotation shaft 1205. This results in a smaller lifting distance for the insulation strip 1201 near the furnace inlet and a larger lifting distance for the insulation strip 1201 near the furnace outlet. This effectively coordinates with the lifting of the inclined roller conveyor 4, sealing the elongated hole 13 as much as possible and effectively reducing heat loss inside the furnace.

[0073] Preferably, the length of the elongated hole 13 varies along the glass conveying direction. The elongated hole 13 near the inlet of the heating furnace is shorter, and the elongated hole 13 near the outlet of the heating furnace is longer. The length of the elongated hole 13 can vary linearly or nonlinearly.

[0074] Preferably, the end of the insulation strip 1201 facing the inclined roller 4 is configured as an arc shape that fits into the surface of the inclined roller 4, so as to better fit the inclined roller 4 and further improve the sealing and insulation effect.

[0075] The heat preservation lifting drive 1203 in the furnace body heat preservation component 12 can be a drive motor, cylinder or hydraulic cylinder, etc.

[0076] For the furnace body insulation component 12, other implementation methods can also be adopted. For example, instead of setting up the insulation crossbar 1204 and the crossbar rotation shaft 1205, multiple insulation lifting drive motors 1203 can be set up, the same number as the insulation lifting rods 1202. The insulation lifting drive motors 1203 and insulation lifting rods 1202 are connected one-to-one, and each insulation lifting drive motor 1203 drives the corresponding insulation lifting rod 1202 and insulation strip 1201 to rise and fall. In this way, each insulation strip 1201 can be adjusted individually, so that the distance between the lower end of the insulation strip 1201 and the inclined roller conveyor 4 is in the optimal state, achieving the best insulation effect.

[0077] Based on this embodiment, the following glass forming methods can be completed.

[0078] The first glass forming method: The height and inclination angle of the inclined roller conveyor 4 are adjusted by the inclined roller conveyor lifting device 10 and the inclined roller conveyor adjustment drive device 11, so that the height and angle gradually increase from the first inclined roller conveyor 4 at the front end of the conveying direction to the last inclined roller conveyor 4 at the rear end of the conveying direction. The heat preservation lifting drive 1203 drives the heat preservation strip 1201 to move closer to the inclined roller conveyor 4 to achieve sealing of the furnace body. The hot glass is conveyed along the conveying direction by the horizontal roller conveyor 3, passing through each inclined roller conveyor 4 in sequence. Under the action of the inclined roller conveyor 4, the two sides of the hot glass gradually bend to the preset height.

[0079] It is worth noting that the distance between the inclined roller units 5 on both sides of the glass conveying direction can be adjusted by sliding the movable frame 601 on the frame base 602, thus making it suitable for the production of different glass sizes.

[0080] The height and angle of the inclined rollers 4 on both sides of the glass conveying direction can be the same or different, and can be adjusted accordingly based on the glass to be produced.

[0081] The second glass forming method: The height and angle of the inclined roller conveyor 4 are adjusted by the inclined roller conveyor lifting device 10 and the inclined roller conveyor adjustment drive device 11, and both inclined roller conveyors 4 are positioned away from the heating furnace. After the hot glass is conveyed to the horizontal roller conveyor 3, it stops. The moving frame 601 slides on the frame base 602, driving the inclined roller conveyors 4 to gradually approach the center of the heating furnace from both sides, extruding and shaping the hot glass on both sides. In this forming method, the inclined roller conveyor 4 is inserted into the bottom of the glass from the side, extruding and shaping the glass. Therefore, the height and angle of each inclined roller conveyor 4 can be arbitrary, as long as it can extrude the hot glass into the required curved state. For example, the height and angle of the inclined roller conveyor 4 at the front end of the glass conveying direction are consistent and relatively large, while the height and angle of the inclined roller conveyor 4 at the rear end of the glass conveying direction are consistent and relatively small; or the height and angle gradually increase from the first inclined roller conveyor 4 to the middle inclined roller conveyor 4 in the conveying direction, and gradually decrease from the middle inclined roller conveyor 4 to the last inclined roller conveyor 4 in the conveying direction; or the inclined roller conveyors on the left and right sides of the heating furnace have different heights and angles.

[0082] The third glass forming method: In the initial state, the inclined rollers 4 are all in a horizontal position. After the hot glass is conveyed to the position, it stops. Then, each inclined roller 4 is gradually adjusted to the required height and angle, which drives the hot glass to bend and form gradually.

[0083] Based on the structure of this embodiment, a variety of different glass forming methods other than the three forming methods described above can also be used, which will not be elaborated here.

[0084] Example 2: In Embodiment 1, the lifting rod 1101 is positioned above the inclined roller conveyor adjustment drive device 11, and it continuously lifts the inclined roller conveyor adjustment drive device 11. Compared to a structure where the lifting rod 1101 is positioned below the inclined roller conveyor adjustment drive device 11, and the lifting rod 1101 continuously pushes the inclined roller conveyor adjustment drive device 11 upward, this structure is more suitable in terms of the force on the lifting rod 1101, so that the lifting rod 1101 does not need to have too high strength, and at the same time has a longer service life.

[0085] However, in this embodiment, the lifting rod 1001 can also be installed on the lower side of the inclined roller conveyor adjustment drive device 11, and the inclined roller conveyor adjustment drive device 11 can be pushed up and down along the inclined direction of the inclined roller conveyor support, which can also achieve the adjustment effect of the inclined roller conveyor as described in Embodiment 1.

[0086] Example 3: Based on Embodiment 1, the difference between this embodiment and Embodiment 1 is that: the inclined roller support 7 adopts an inclined plate, and multiple elongated holes are opened on the plate for the inclined roller 4 to pass through. The slide rails 8 are provided on both sides of the elongated holes to slidably connect the inclined roller control device 9.

[0087] Example 4: The difference between this embodiment and Embodiment 1 is that the inclined roller support is an arc-shaped support, which can be multiple independent arc-shaped rods or an arc plate with multiple long holes.

[0088] Example 5: The difference between this embodiment and Embodiment 1 is that multiple inclined roller conveyor units are all located on one side of the glass conveying direction. This structure is suitable for the production of glass that is flat on one side and warped on the other.

[0089] Example 6: A glass sheet production line includes an loading table, a heating furnace as described in Examples 1-5, and a unloading table. Glass is loaded onto the loading table, passed through the heating furnace, heated and shaped into a predetermined form, and then unloaded from the unloading table.

[0090] In another embodiment, a bending device is also included, which is disposed between the heating furnace and the unloading table. The bending device can be a mold, a rigid shaft bend, a flexible shaft bend, etc. The glass is loaded onto the unloading table, passed through the heating furnace, heated and shaped into a certain shape, then shaped into the final desired shape by the bending device, and finally unloaded onto the unloading table.

[0091] In another embodiment, a cooling device is also included. The cooling device is located after the heating furnace or after the bending device. The glass that has been heated or bent is then cooled and tempered by the cooling device and finally unloaded by the unloading table.

[0092] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Those skilled in the art should understand that modifications or equivalent substitutions can be made to the specific implementation of this utility model with reference to the above embodiments. Any modifications or equivalent substitutions that do not depart from the spirit and scope of this utility model are within the protection scope of the pending claims.

Claims

1. A glass plate bending heating furnace, comprising a furnace body (1) and a heating chamber (2) enclosed by the furnace body (1), wherein multiple horizontal roller conveyors (3) for horizontally conveying glass are spaced apart from the inlet end to the outlet end of the heating chamber (2), characterized in that: Multiple inclined roller conveyor units (5) are provided on one or both sides of the glass conveying direction. The multiple inclined roller conveyor units (5) are arranged at intervals along the glass conveying direction. Each inclined roller conveyor unit (5) includes an inclined roller conveyor (4) and an inclined roller conveyor control device (9). One end of the inclined roller conveyor (4) is located inside the heating chamber (2) and between two adjacent horizontal roller conveyors (3). The other end of the inclined roller conveyor (4) is located outside the heating chamber (2) and connected to the inclined roller conveyor control device (9). The inclined roller conveyor control device (9) is used to control the connected inclined roller conveyor (4) to perform the following actions: lifting and lowering in a set direction, swinging up and down to adjust the tilt angle, and rotating. The inclined roller (4) is inclined when participating in the bending and forming of the glass plate, and one end of the inclined roller (4) inside the heating chamber (2) is lower than the horizontal roller (3), while the other end of the inclined roller (4) outside the heating chamber (2) is higher than the horizontal roller (3).

2. The glass plate bending heating furnace according to claim 1, characterized in that: The furnace body (1) also includes an inclined roller support (7), the upper end of which is close to the heating furnace and the lower end of which is far from the heating furnace. The inclined roller control device (9) is slidably connected to the inclined roller support (7).

3. The glass plate bending heating furnace according to claim 2, characterized in that: The inclined roller conveyor control device (9) includes an inclined roller conveyor lifting device (10) and an inclined roller conveyor adjustment drive device (11) connected to each other; the inclined roller conveyor lifting device (10) is connected to the inclined roller conveyor support (7) and is used to control the inclined roller conveyor (4) to rise and fall along the inclined roller conveyor support (7); the inclined roller conveyor adjustment drive device (11) is connected to the inclined roller conveyor (4) and is used to control the rotation and up-and-down swing of the inclined roller conveyor (4).

4. The glass plate bending heating furnace according to claim 3, characterized in that: It also includes a frame (6), the inclined roller conveyor support (7) is fixedly mounted on the frame (6), the inclined roller conveyor lifting device (10) includes a lifting rod (1001), a lifting drive motor (1002) and a lifting slider (1004), one end of the lifting rod (1001) is hinged to the lifting slider (1004), one side of the lifting slider (1004) is slidably connected to the inclined roller conveyor support (7), and the other side of the lifting slider (1004) is connected to the inclined roller conveyor adjustment drive device (11). The lifting drive motor (1002) is mounted on the frame (6) and is used to control the lifting rod (1001) to drive the inclined roller conveyor adjustment drive device (11) to rise and fall along the inclined roller conveyor support (7).

5. The glass plate bending heating furnace according to claim 4, characterized in that: The lifting drive (1002) is rotatably mounted on the frame (6), and the lifting rod (1001) is located above the inclined roller conveyor adjustment drive device (11).

6. The glass plate bending heating furnace according to claim 4, characterized in that: The inclined roller support (7) is a straight support or an arc support, and multiple supports are arranged at intervals along the glass conveying direction.

7. The glass plate bending heating furnace according to claim 4, characterized in that: The inclined roller conveyor adjustment drive device (11) includes an inclined roller conveyor angle adjustment mechanism and an inclined roller conveyor rotation mechanism. The inclined roller conveyor rotation mechanism is connected to the inclined roller conveyor angle adjustment mechanism, and the inclined roller conveyor (4) is connected to the inclined roller conveyor rotation mechanism.

8. The glass plate bending heating furnace according to claim 7, characterized in that: The inclined roller conveyor angle adjustment mechanism includes an angle adjustment motor (1101) and a rotating component. The rotating component is rotatably connected to the lifting slider (1004). The output shaft of the angle adjustment motor (1101) is connected to the rotating component, controlling the rotating component to rotate and drive the inclined roller conveyor (4) to swing up and down. The inclined roller conveyor rotation mechanism is fixedly connected to the rotating component.

9. The glass plate bending heating furnace according to claim 8, characterized in that: An angle limiting component is also provided between the rotating component and the lifting slider (1004). The angle limiting component includes a limiting groove (1104) and a limiting post (1105). The limiting groove (1104) is arc-shaped and centered on the rotation axis of the rotating component. The limiting post (1105) is slidably disposed in the limiting groove (1104).

10. The glass plate bending heating furnace according to claim 8, characterized in that: The rotating assembly includes a worm and a worm gear seat (1102). The worm gear seat (1102) is provided with worm teeth that can mesh with the worm. The worm gear seat (1102) is fixed on the inclined roller conveyor rotating mechanism. The worm is connected to the output shaft of the angle adjusting motor (1101) via a transmission.

11. The glass plate bending heating furnace according to claim 8, characterized in that: The rotating component is a rotating block, which is connected to the output shaft of the angle adjustment motor (1101) and is fixed on the inclined roller conveyor rotation mechanism.

12. The glass plate bending heating furnace according to claim 8, characterized in that: The inclined roller conveyor rotation mechanism includes a bearing housing (1106) and a rotary drive motor (1107). The bearing housing (1106) is fixedly connected to the rotating assembly. The rotary drive motor (1107) is mounted on the bearing housing (1106) and connected to the inclined roller conveyor (4) passing through the bearing housing (1106) to drive the inclined roller conveyor (4) to rotate.

13. The glass plate bending heating furnace according to claim 1, characterized in that: The furnace body (1) is provided with elongated holes (13) through which the inclined roller conveyor (4) passes. The elongated holes (13) are provided one-to-one with the inclined roller conveyor (4). The furnace body insulation component (12) is also provided for sealing multiple elongated holes (13). The furnace body insulation component (12) includes an upper insulation component above the inclined roller conveyor (4) and a lower insulation component below the inclined roller conveyor (4). The upper insulation component and the lower insulation component have the same structure, including multiple insulation strips (1201) and multiple insulation lifting rods (1202). The insulation strips (1201) are located in the elongated holes (13). One end of the insulation lifting rod (1202) is connected to the end of the insulation strip (1201) that is away from the inclined roller conveyor (4). The other end of the insulation lifting rod (1202) is connected to the insulation lifting drive motor (1203).

14. The glass plate bending heating furnace according to claim 13, characterized in that: Multiple heat-insulating lifting rods (1202) located above or below the inclined roller conveyor (4) are connected to the same heat-insulating crossbar (1204), and the heat-insulating crossbar (1204) is connected to a heat-insulating lifting drive motor (1203).

15. The glass plate bending heating furnace according to claim 14, characterized in that: The end of the heat-insulating crossbar (1204) near the furnace inlet is rotatably connected to the furnace body (1).

16. The glass plate bending heating furnace according to claim 4, characterized in that: The frame (6) includes a movable frame (601) and a frame base (602). The inclined roller support (7) is fixed on the movable frame (601). The movable frame (601) is slidably connected to the frame base (602), and the sliding direction is perpendicular to the glass conveying direction.

17. A glass plate production line, characterized in that: It includes an loading stage, a glass plate bending heating furnace according to any one of claims 1-16, and a unloading stage arranged sequentially along the process route.

18. The glass plate production line according to claim 17, characterized in that: It also includes bending equipment, which is set between the glass plate bending heating furnace and the unloading table.

19. The glass plate production line according to claim 18, characterized in that: It also includes a cooling device, which is located between the bending device and the unloading stage.

20. The glass plate production line according to claim 17, characterized in that: It also includes cooling equipment, which is located between the glass plate bending heating furnace and the unloading table.

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