Glass plate bending heating furnace and production line

Abstract

The invention relates to a glass plate bending heating furnace and a production line, the heating furnace comprises a furnace body and a heating chamber, a plurality of horizontal roller ways are arranged at intervals from the inlet end to the outlet end of the heating chamber, and a plurality of inclined roller way units are arranged at intervals along the glass conveying direction on one side or two sides of the glass conveying direction. Each inclined roller bed unit comprises an inclined roller bed and an inclined roller bed control device, one end of each inclined roller bed is arranged in the heating chamber and located between the adjacent horizontal roller beds, and the other end of each inclined roller bed is arranged outside the heating chamber and connected with the corresponding inclined roller bed control device; the inclined roller way control device is used for controlling the connected inclined roller way to realize the following actions: lifting along a set direction, swinging up and down and rotating; the inclined roller way is in an inclined state when participating in glass plate bending forming; the production line comprises an upper sheet table, the heating furnace and a lower sheet table. The invention can adapt to different types, sizes, thicknesses and arch heights of glass as well as production environments and production processes of different glass.

Description

Technical Field

[0001] The invention belongs to the technical field of glass bending and forming, and particularly relates to a glass plate bending heating furnace and a production line. Background Art

[0002] If flat glass is directly formed into a deep or highly curved shape through a mold or other means, cracks can easily form and the curved shape of the glass sheet can become inaccurate. For example, when creating a "︺"-shaped glass sheet—one with a flat center and curved sides—it's difficult to achieve this precise shape using conventional glass bending equipment.

[0003] Patent publication number CN1262499C proposes an apparatus and method for roller bending a heated glass sheet. This solution addresses the aforementioned issues and forms the aforementioned "︺"-shaped glass. However, the bending rollers are controlled in groups, connected to bending support ribs whose shape is fixed. The bending rollers can only be adjusted to a predetermined curved surface by adjusting the height of the last bending roller. The tilt angle of each bending roller is driven by a pre-designed and installed mechanical structure, resulting in fixed tilt angle and height differences between adjacent bending rollers. This results in poor adaptability, making it impossible to adjust the tilt angle and height of each bending roller, as well as the tilt angle difference between adjacent bending rollers, to accommodate variations in glass type, size, thickness, arch height, production environment, and production process. Consequently, the device can only produce glass with a specific arch height and size, and cannot be adjusted to suit the production environment and production process. In addition, the fixed structure of the above device leads to poor flexibility of the device and excessive reliance on the accuracy of processing and installation of equipment parts. Summary of the Invention

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

[0005] In order to achieve the above-mentioned object, the technical solution adopted by the present invention is: a glass plate bending and heating furnace, comprising a furnace body and a heating chamber surrounded by the furnace body, a plurality of horizontal rollers for horizontally conveying glass are arranged at intervals from the inlet end to the outlet end of the heating chamber, and the characteristic is that: a plurality of inclined roller units are arranged on one side or both sides of the glass conveying direction, the plurality of inclined roller units are arranged at intervals along the glass conveying direction, each inclined roller unit comprises an inclined roller and an inclined roller control device, one end of the inclined roller is arranged inside the heating chamber and between two adjacent horizontal rollers, and the other end of the inclined roller is arranged outside the heating chamber and connected to the inclined roller control device; the inclined roller control device is used to control the connected inclined roller to realize the following actions: lifting and lowering along a set direction, swinging up and down to adjust the tilt angle, and rotating; The inclined roller is in an inclined state when participating in the bending of the glass plate, and one end of the inclined roller located in the heating chamber is lower than the horizontal roller, and the other end of the inclined roller located outside the heating chamber is higher than the horizontal roller.

[0006] Its beneficial effects are: each inclined roller in the present invention is adjusted by a corresponding inclined roller control device, that is, the inclination angle and height of each inclined roller can be adjusted individually, so that the equipment is highly flexible and adaptable, and the height and angle of each inclined roller and 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 configurations for glass plate bending production, thereby providing more possibilities.

[0007] In addition, one end of the inclined roller is arranged in the heating chamber, and the end connected to the inclined roller control device is arranged outside the heating chamber, so that the inclined roller control device is not in the high temperature environment of the heating chamber, thereby enhancing the service life. At the same time, the inclined rollers can be arranged more densely, and the hot glass is always in the heating chamber during the bending forming process, which is beneficial to the bending forming of the glass.

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

[0009] The beneficial effect is that if the inclined roller support is in a vertical position or with its upper end away from the heating furnace and its lower end closer to the heating furnace, when the inclined roller control device drives one end of the inclined roller to rise, the other end of the inclined roller will retreat toward the outside of the heating furnace, resulting in a lack of effective support for the glass sheet. Therefore, in the present invention, the upper end of the inclined roller support is closer to the heating furnace and the lower end is farther away from the heating furnace, providing an inclined surface for the inclined roller control device. When the inclined roller control device drives the inclined roller to rise, the distance that the inclined roller retreats from one end of the heating furnace due to the increase in the height of the inclined roller and the increase in the angle of the inclined roller can be compensated.

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

[0011] The beneficial effects are as follows: the lifting and lowering of the inclined roller is controlled by the inclined roller lifting device, the inclination angle adjustment and rotation of the inclined roller are controlled by the inclined roller adjustment drive device, the inclined roller lifting device and the inclined roller 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 bracket is fixedly arranged on the frame, the inclined roller 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 slidingly connected to the inclined roller bracket, and the other side of the lifting slider is connected to the inclined roller adjustment drive device, the lifting drive motor is installed on the frame, and the lifting drive motor is used to control the lifting rod to drive the inclined roller adjustment drive device to rise and fall along the inclined roller bracket.

[0013] The advantages of this are that multiple inclined roller supports are connected to a single frame, simplifying the frame structure, making the overall equipment more stable, and making control easier. A lifting slider is driven by a lifting rod to slide and rise along the inclined roller support, and the lifting slider is connected to the inclined roller adjustment drive device, providing guidance and support for the inclined roller.

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

[0015] Its beneficial effect is that when the lifting rod drives the inclined roller adjustment drive device and the inclined roller to rise and fall, it will swing closer to or away from the heating furnace due to reasons such as installation position or installation accuracy. 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, thereby ensuring the strength and service life of the lifting rod.

[0016] As an option, the inclined roller support is a linear support or an arc-shaped support, and a plurality of them are arranged at intervals along the glass conveying direction.

[0017] The beneficial effect is that the straight bracket or the arc bracket can provide reliable guidance and support for the lifting and lowering of the inclined roller lifting device.

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

[0019] The beneficial effect is that the angle adjustment and rotation functions of the inclined roller are controlled by corresponding mechanisms respectively without affecting each other.

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

[0021] The beneficial effect is that an implementation method of the inclined roller angle adjustment mechanism is proposed.

[0022] Furthermore, an angle limiting assembly is provided between the rotating assembly and the lifting slider, including a limiting groove and a limiting column. The limiting groove is arc-shaped and takes the rotating axis of the rotating assembly as the center of the circle. The limiting column is slidably provided in the limiting groove.

[0023] The beneficial effect is that the limiting hole and the limiting column can limit the rotation range of the rotating component and provide a guide for the rotation.

[0024] As an embodiment of the rotating assembly, the rotating assembly includes a worm and a worm gear seat, the worm gear seat is provided with worm teeth that can engage with the worm, the worm gear seat is fixed on the inclined roller rotation mechanism, and the worm is transmission-connected to the output shaft of the angle adjustment motor.

[0025] The beneficial effect is that the inclined roller conveyor drives the worm gear seat to rotate through the cooperation of the worm and worm teeth in the angle adjustment mechanism, thereby driving the inclined roller conveyor rotating mechanism to rotate and driving the inclined roller conveyor to adjust the inclination angle.

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

[0027] The 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 rotation mechanism includes a bearing seat and a rotation drive motor. The bearing seat is fixedly connected to the rotating assembly. The rotation drive motor is installed on the bearing seat and connected to the inclined roller passing through the bearing seat to drive the inclined roller to rotate.

[0029] The beneficial effect is that the specific structure of the inclined roller rotating mechanism is proposed.

[0030] Preferably, the furnace body is provided with long strip holes for the inclined roller to pass through, and the long strip holes are arranged in one-to-one correspondence with the inclined rollers. It also includes a furnace body insulation component for sealing the multiple long strip holes. The furnace body insulation component includes an upper insulation component above the inclined roller and a lower insulation component below the inclined roller. 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 long strip holes, and one end of the insulation lifting rod is connected to the end of the insulation strip facing away from the inclined roller, and the other end of the insulation lifting rod is connected to the insulation lifting drive machine.

[0031] The beneficial effect is that the arrangement of the long holes provides space for the lifting and tilting of the inclined roller, and the furnace insulation component can seal the upper and lower parts of the inclined roller, thereby reducing heat loss of the furnace.

[0032] As an implementation method of the furnace body insulation component, multiple insulation lifting rods located above or below the inclined roller are connected to the same insulation cross bar, and the insulation cross bar is connected to an insulation lifting drive machine.

[0033] The beneficial effect is that a plurality of insulation strips on the same side of the inclined roller are raised and lowered synchronously, which can improve the efficiency of adjusting the raising and lowering of the insulation strips.

[0034] Furthermore, one end of the heat-insulating crossbar close to the inlet end of the heating furnace is rotatably connected to the furnace body.

[0035] Its beneficial effect is that when the insulation lifting drive machine drives each insulation strip to lift through the insulation cross bar, it rotates around the cross bar rotation axis, so that the insulation strip near the inlet end of the heating furnace has a small lifting distance, and the insulation strip near the outlet end of the heating furnace has a large lifting distance, thereby effectively cooperating with the lifting and lowering of the inclined roller, sealing the long strip holes as much as possible, and effectively reducing heat loss in the heating furnace.

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

[0037] The benefits of this system include: the sliding connection between the movable frame and the frame base allows the movable frame to be moved toward or away from the heating furnace, thereby adjusting the distance between the inclined roller units on either side of the heating furnace, thereby enabling the production of different glass sizes. The movable frame can be moved away from the heating furnace until the inclined rollers are completely out of the furnace, which also facilitates maintenance and replacement of the inclined roller units.

[0038] The beneficial effects of the glass plate bending heating furnace proposed by the present invention are as follows: each inclined roller in the present invention can be individually controlled to achieve individual adjustment of the height and tilt angle, making the equipment highly flexible and adaptable. The height, angle, and angle difference between two adjacent inclined rollers can be arbitrarily adjusted according to the type, size, thickness, arch height, production environment, and production process of the glass, which can provide more flexible configurations for glass plate bending production and thus provide more possibilities. For example, the angle difference between two adjacent inclined rollers at the front end of the conveying direction can be made smaller, while the angle difference between two adjacent inclined rollers at the rear end of the conveying direction can be made larger, or vice versa. For another example, the tilt angles of the inclined rollers on both sides of the heating furnace can be made different, thereby producing glass with different bending curvatures and arch heights on both sides. In addition, each inclined roller can be adjusted individually, eliminating the need for high processing and installation accuracy of equipment components.

[0039] The present invention also provides a glass plate production line, comprising a loading platform, the above-mentioned glass plate bending and heating furnace, and a unloading platform, which are sequentially arranged along a process route.

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

[0041] The 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 a cooling device, which is arranged between the bending device and the unloading table.

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

[0044] Furthermore, the production line also includes a cooling device, which is arranged between the glass plate bending heating furnace and the unloading platform.

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

[0046] The beneficial effect of the glass plate production line proposed by the present invention is that the above-mentioned glass plate bending heating furnace can be applied to different production processes to produce bent glass of various specifications, providing more flexible configurations for glass plate bending production, thereby providing more possibilities. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0048] Figure 1 Schematic side view of the glass sheet bending heating furnace according to the present invention; Figure 2 This is an end view of the glass sheet bending and heating furnace of the present invention in the direction of glass conveying; Figure 3 Schematic diagram of the installation structure of the inclined roller unit in the present invention; Figure 4 It is a structural schematic diagram of the inclined roller lifting device of the present invention; Figure 5 Schematic diagram of the structure of the inclined roller adjustment drive device of the present invention; Figure 6 It is a structural schematic diagram of the heating furnace wall in the present invention; Markings in the figure: 1, furnace body, 2, heating chamber, 3, horizontal roller, 4, inclined roller, 5, inclined roller unit, 6, frame, 601, mobile frame, 602, frame base, 603, frame slide rail, 604, mobile frame slider, 605, mobile frame walking wheel, 7, inclined roller bracket, 8, slide rail, 9, inclined roller control device, 10, inclined roller lifting device, 1001, lifting rod, 1002, lifting drive machine, 1003, rotating seat, 10 04. Lifting slider, 11. Inclined roller adjustment drive device, 1101. Angle adjustment motor, 1102. Worm gear seat, 1103. Rotating shaft, 1104. Limiting groove, 1105. Limiting column, 1106. Bearing seat, 1107. Rotating drive motor; 12. Furnace body insulation assembly, 1201. Insulation strip, 1202. Insulation lifting rod, 1203. Insulation lifting drive motor, 1204. Insulation cross bar, 1205. Cross bar rotating shaft, 13. Long strip hole. DETAILED DESCRIPTION

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and examples, but they are not intended to limit the invention in any way.

[0050] Example 1: Figure 1 、 2 As shown, a glass plate bending heating furnace includes a furnace body 1 and a heating chamber 2 surrounded 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, a plurality of horizontal rollers 3 are arranged at intervals in the same horizontal plane along the glass conveying direction in the heating chamber 2 for horizontally conveying the glass. Therefore, the upper surfaces of the plurality of horizontal rollers 3 form a horizontal conveying surface for conveying the glass. A plurality of 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 arranged in the heating chamber 2 and is located between two adjacent horizontal rollers 3. The other end of the inclined roller 4 is arranged 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 to which it is connected to realize the following actions: (1) lifting and lowering of the inclined roller 4; (2) swinging the inclined roller 4 up and down to reach an inclined state and adjust the tilt angle; (3) rotation of the inclined roller 4. The lifting and lowering of the inclined roller 4 provides swing space, allowing it to swing into position and achieve the target tilt angle. Once tilted, through lifting and swinging, the inclined roller 4 can intersect with the horizontal conveying surface formed by the multiple horizontal rollers 3. The end of the inclined roller 4 located within the heating chamber 2 is lower than the horizontal rollers 3, while the end of the inclined roller 4 located outside the furnace body 1 is higher than the horizontal rollers 3. The rotation of the inclined roller 4 facilitates the conveyance of glass, reduces friction with the glass, and prevents scratches on the glass surface.

[0051] The multiple inclined rollers 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 the 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 different inclination angles to meet the molding requirements of glass of different shapes.

[0053] As an option, multiple inclined roller units 5 can be set in a partial area between the inlet end and the outlet end of the furnace body 1, which is close to the outlet end of the furnace body 1; or, multiple inclined roller units 5 can also be set in the entire area between the inlet end and the outlet end of the furnace body 1.

[0054] like Figure 3As shown, the exterior of the heating furnace also includes multiple parallel inclined roller supports 7. The inclined roller supports 7 are linear rods and are fixed to the frame 6. The upper ends of the inclined roller supports 7 are close to the heating furnace, while the lower ends of the inclined roller supports 7 are away from the heating furnace. Slide rails 8 are provided on the side of the inclined roller supports 7 facing the heating furnace. The length of the slide rails 8 is parallel to the length of the inclined roller supports 7, so the multiple slide rails 8 on the multiple inclined roller supports 7 are also parallel to each other. The inclined rollers 4 are arranged between adjacent inclined roller supports 7, and the inclined roller control device 9 is slidably connected to the slide rails 8 on the inclined roller supports 7.

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

[0056] like Figure 4 As shown, the inclined roller table lifting device 10 includes a lifting rod 1001, a lifting drive 1002 and a lifting slider 1004. The lifting drive 1002 is used to drive 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. The lifting slider 1004 is slidably arranged along the slide rail 8, and the lifting slider 1004 is also fixedly connected to the inclined roller table adjustment drive device 11. The up and down movement of the lifting rod 1001 can drive the inclined roller table adjustment drive device 11 to move up and down along the slide rail 8. The lifting drive 1002 can be a motor, a cylinder, a hydraulic cylinder or other drive machine, preferably a motor. The lifting rod 1001 is a motor-driven screw rod or a motor telescopic rod. Therefore, the driving of the lifting rod 1001 by the lifting drive 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 rails 8, allowing the corresponding inclined roller adjustment drive device 11 to be located between the two inclined roller supports 7, facilitating the structural layout of the inclined roller adjustment drive device 11. Preferably, to achieve the sliding connection between the lifting slider 1004 and the two adjacent rails 8, the lifting slider 1004 is provided with a T-shaped component. The T-shaped component's opposite ends are slidably connected to the adjacent rails 8, and one vertical end of the T-shaped component is located between the two inclined roller supports 7 and connected to the inclined roller adjustment drive device 11. For two adjacent inclined roller control devices 9, the T-shaped component of the lifting slider 1004 of one inclined roller control device 9 is arranged horizontally at the top and vertically at the bottom, i.e., a straight T-shape. The T-shaped component of the lifting slider 1004 of the other inclined roller control device 9 is arranged vertically at the top and horizontally at the bottom, i.e., an inverted T-shape. This allows for the placement of an inclined roller adjustment drive device 11 between any two adjacent inclined roller supports 7, resulting in a more compact structural layout. In this embodiment, the number of the inclined roller conveyor brackets 7 is one more than the number of the inclined roller conveyor control devices 9 .

[0058] As another embodiment, the slide rails 8 may not be provided on the inclined roller support 7, but may be replaced with slide grooves, along which the lifting slider 1004 slides and rises. Alternatively, the lifting slider 1004 is slidably mounted on the inclined roller support 7. In this case, the number of inclined roller supports 7 is the same as the number of inclined roller control devices 9. Alternatively, the slide rails 8 may be provided on the side of the inclined roller support 7, and the lifting slider 1004 may be slidably mounted on the slide rails 8. In this case, the number of inclined roller supports 7 is the same as the number of inclined roller control devices 9.

[0059] Preferably, when the lifting rod 1001 drives the inclined roller adjustment drive device 11 and the inclined roller 4 to rise and fall, since they are lifted and lowered along the slide rail 8 on the inclined roller bracket 7, and the inclined roller bracket 7 is inclined, in order to leave space for the arrangement of other parts of the heating furnace, the lifting rod 1001 is arranged farther away from the heating furnace than the inclined roller bracket 7, and the two are not arranged in a straight line. At this time, the lifting rod 1001 may get stuck during the lifting process. In order to avoid getting stuck, 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 to a certain angle at will, avoiding the lifting rod 1001 from getting stuck during lifting, ensuring the smooth lifting of the inclined roller 4, and ensuring the strength and service life of the lifting rod 1001. At the same time, the installation accuracy requirements of the lifting rod 1001 can be reduced, and the lifting rod 1001 does not need to be completely parallel to the inclined roller bracket 7. Moreover, the rotation axis is located in the middle of the lifting rod 1001, so that the swing space of the upper end of the lifting rod 1001 is smaller, thereby reducing the occupied space.

[0060] In other embodiments, when the lifting rod 1001 and the inclined roller support 7 are in a straight line, the lifting rod 1001 always stays in the straight line during lifting, and in this case, there is no need to provide a rotating base 1003. However, this solution takes up a lot of space and is inconvenient for arranging other components of the heating furnace and for installing and maintaining the heating furnace.

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

[0062] In this embodiment, the inclined roller angle adjustment mechanism includes an angle adjustment motor 1101, a worm, and a worm gear seat 1102. The worm gear seat 1102 is rotationally connected to the lifting slider 1004 via a rotating shaft 1103 and is fixedly connected to the inclined roller rotation mechanism. The worm gear seat 1102 is provided with worm teeth for engaging with the worm. The angle adjustment motor 1101 is connected to the worm, driving the worm to rotate, thereby driving the worm gear seat 1102 to rotate relative to the lifting slider 1004. The inclined roller angle adjustment mechanism also includes a sliding stop groove 1104 and a stop post 1105. The stop groove 1104 is an arc-shaped groove centered on the rotating shaft 1103. The stop groove 1104 is provided on the worm gear seat 1102. The stop post 1105 extends through the stop groove 1104 and is provided on the lifting slider 1004. The ends of the stop groove 1104 represent the two extreme rotation positions of the worm gear seat 1102. When the inclined roller angle adjustment mechanism is in the initial state, the limit column 1105 is located at the lower end of the limit slot 1104, and the inclined roller 4 is in a horizontal state; when the limit column 1105 is located at the upper end of the limit slot 1104, the inclined roller 4 has a maximum inclination angle; when the limit column 1105 is located between the two ends of the limit slot 1104, the inclined roller 4 is at an inclination angle corresponding to the position, so that the angle adjustment motor 1101 can realize the adjustment of the inclined roller 4 from a horizontal state to an inclined state and to different inclination angles within the inclination range.

[0063] It is understandable that the limiting groove 1104 and the limiting column 1105 can also be set at an exchanged position, and can also play the role of limiting and adjusting the inclination range of the inclined roller 4.

[0064] In the above embodiment, the worm and worm gear 1102 constitute a rotating assembly driven by the angle adjustment motor 1101. In other embodiments, the rotating assembly may also be a rotating block connected to the output shaft of the angle adjustment motor 1101 and fixed to the inclined roller rotating mechanism.

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

[0066] When the inclined roller 4 is adjusted using the present invention, the height of the corresponding inclined roller 4 can be adjusted by the inclined roller lifting device 10 to provide adjustment space for the angle adjustment of the inclined roller 4; then the inclined roller 4 is driven to swing by the inclined roller angle adjustment mechanism of the inclined roller adjustment drive device 11, and the inclined roller 4 is adjusted to an inclined state and reaches the target inclination angle.

[0067] Furthermore, the multiple inclined roller brackets 7 are fixed to the movable frame 601 of the frame 6 by screwing, welding, or other means. 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 603 is provided perpendicular to the direction of glass conveyance in the heating furnace. The bottom of the movable frame 601 is provided with a movable frame slider 604. The movable frame slider 604 is slidably connected to the frame slide 603, allowing the movable frame 601 to move toward or away from the heating furnace, thereby adjusting the distance between the inclined roller units 5 on both sides of the heating furnace, thereby allowing the production of glass of different sizes. The movable frame 601 moves away from the heating furnace until the inclined rollers 4 are completely out of the heating furnace, which also facilitates the maintenance of the inclined roller units 5 and the replacement of the inclined rollers 4.

[0068] A crossbeam is further provided in the frame base 602, and the crossbeam is parallel to the frame slide rail 603. A moving frame running wheel 605 is further provided at the bottom of the mobile frame 601. The moving frame running wheel 605 is driven by a corresponding motor and rolls along the crossbeam to achieve automatic movement of the mobile frame 601. Preferably, a rack can be provided on the crossbeam, and the corresponding mobile frame running wheel 605 is a gear that can mesh with the rack. In the process of driving the mobile frame 601 to move, the self-locking function of the gear and rack can be used to achieve the fixed position of the mobile frame 601.

[0069] In other embodiments, multiple racks may be provided, each of which is connected to a plurality of inclined roller supports in a one-to-one correspondence, and the mobile racks in the multiple racks are connected to the rack bases in a one-to-one manner.

[0070] In the present invention, the inclined roller 4 is partially located inside the furnace body 1 and partially located outside the furnace body 1. Therefore, a hole is required in the furnace wall for the inclined roller 4 to pass through. Since the inclined roller 4 needs to be raised and lowered for height adjustment, the hole in the furnace wall should be an elongated hole. Therefore, the holes above and below the inclined roller 4 in the elongated hole need to be blocked and insulated. To this end, this embodiment also provides a corresponding furnace insulation assembly.

[0071] The furnace body insulation assembly includes an upper insulation assembly located above the inclined roller 4 and a lower insulation assembly located below the inclined roller 4. The upper insulation assembly and the lower insulation assembly have the same structure but are in opposite directions. Figure 6 The structure of the upper furnace insulation assembly shown is described using the example of the lower insulation assembly. The structure of the furnace insulation assembly 12 is omitted. The furnace insulation assembly 12 includes multiple insulation strips 1201, multiple insulation lifting rods 1202, and an insulation lifting drive 1203. The multiple insulation strips 1201 and the multiple insulation lifting rods 1202 are arranged in a one-to-one correspondence. The sidewall of the furnace body 1 is provided with multiple elongated holes 13 for the inclined rollers 4 to pass through. Each elongated hole 13 is provided with two insulation strips 1201, one located above and one below the inclined rollers 4 within the elongated hole 13. The end of the insulation strip 1201, away from the inclined rollers 4, is connected to the insulation lifting rod 1202. Multiple insulation lifting rods 1202 are connected to the same insulation cross bar 1204, and the insulation cross bar 1204 is connected to the insulation lifting drive 1203. The insulation lifting drive 1203 drives the insulation lifting rods 1202 and the insulation strips 1201 to rise and fall through the insulation cross bar 1204 to provide lifting space for the inclined roller 4 and seal the long strip holes 13.

[0072] Furthermore, because the tilt angle of each inclined roller 4 in the present invention can be adjusted independently, and the glass bends more sharply near the exit when the glass is bent, the tilt angle of the inclined roller 4 gradually increases along the glass conveying direction, resulting in different lifting heights for each inclined roller 4. Furthermore, the greater the tilt angle of the inclined roller 4, the greater the height to which the inclined roller 4 must be raised. This requires that the insulation strips 1201 used to seal the elongated holes 13 also be raised and lowered in coordination with the height of the inclined roller 4, and thus the multiple insulation strips 1201 also need to have different lifting heights. In order to achieve this goal, a cross bar rotating shaft 1205 is provided on the insulation cross bar 1204 at one end close to the inlet end of the heating furnace, and the cross bar rotating shaft 1205 is rotatably connected to the furnace body 1, so that when the insulation lifting drive motor 1203 drives each insulation strip 1201 to rise and fall through the insulation cross bar 1204, it will rotate around the cross bar rotating shaft 1205, so that the insulation strip 1201 close to the inlet end of the heating furnace has a short lifting distance, and the insulation strip 1201 close to the outlet end of the heating furnace has a long lifting distance, so that it can effectively cooperate with the lifting and lowering of the inclined roller 4, seal the long strip hole 13 as much as possible, and effectively reduce the heat loss in the heating furnace.

[0073] Preferably, along the glass conveying direction, the length of the elongated hole 13 is different, the elongated hole 13 near the inlet end of the heating furnace is shorter, and the elongated hole 13 near the outlet end of the heating furnace is longer. The length change of the elongated hole 13 can be linear or nonlinear.

[0074] Preferably, the end of the insulation strip 1201 facing the inclined roller 4 is configured to be in an arc shape that fits the surface of the inclined roller 4, so that it can 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 assembly 12 can be a drive machine such as a motor, a cylinder or a hydraulic cylinder.

[0076] Other embodiments can also be used for the furnace body insulation assembly 12. For example, instead of providing the insulation crossbar 1204 and the crossbar rotating shaft 1205, the insulation lifting drive 1203 can be provided in a number equal to the insulation lifting rods 1202. The insulation lifting drive 1203 and the insulation lifting rods 1202 are connected one-to-one, and each insulation lifting drive 1203 drives the corresponding insulation lifting rod 1202 and the insulation strip 1201 to rise and fall. In this way, each insulation strip 1201 can be individually adjusted to ensure that the distance between the lower end of the insulation strip 1201 and the inclined roller 4 is optimal, thereby achieving the best insulation effect.

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

[0078] The first glass forming method uses the inclined roller elevating device 10 and the inclined roller adjustment drive 11 to adjust the height and angle of the inclined rollers 4, gradually increasing from the first inclined roller 4 at the front end of the conveying direction to the last inclined roller 4 at the rear end. The heat preservation elevating drive 1203 moves the insulation strips 1201 closer to the inclined rollers 4 to seal the furnace. Driven by the horizontal rollers 3, the hot glass is conveyed along the conveying direction, passing through each inclined roller 4 in sequence. The inclined rollers 4 gradually bend the hot glass to the preset height on both sides.

[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, thereby being suitable for the production of glass of different sizes.

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

[0081] The second glass forming method involves adjusting the height and angle of the inclined rollers 4 using the inclined roller lifting device 10 and the inclined roller adjustment drive 11. The inclined rollers 4 on both sides are positioned away from the heating furnace. After the hot glass is delivered to its proper position on the horizontal roller 3, it stops. The mobile frame 601 slides on the frame base 602, driving the inclined rollers 4 from both sides toward the center of the heating furnace, pressing and shaping the hot glass on both sides. Since the inclined rollers 4 in this forming method insert into the bottom of the glass from the side, pressing and shaping the glass, the height and angle of each inclined roller 4 can be arbitrary, as long as they can press the hot glass into the desired curved shape. For example, the height and angle of the inclined rollers 4 at the front end of the glass conveying direction can be uniform and large, while the height and angle of the inclined rollers 4 at the rear end of the glass conveying direction can be uniform and small. Alternatively, the height and angle can gradually increase from the first inclined roller 4 to the middle inclined roller 4 in the conveying direction, and then gradually decrease from the middle inclined roller 4 to the last inclined roller 4 in the conveying direction. Alternatively, the inclined rollers on the left and right sides of the heating furnace can 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, and the hot glass stops after being delivered to the position. Then each inclined roller 4 is gradually adjusted to the required height and angle, driving the hot glass to bend and form gradually.

[0083] According to the structure of this embodiment, a variety of different glass forming methods other than the above three forming methods can also be adopted, which will not be described in detail here.

[0084] Example 2: In Example 1, the lifting rod 1101 is arranged above the inclined roller adjustment drive device 11, and always pulls up the inclined roller adjustment drive device 11. Compared with the case where the lifting rod 1101 is arranged below the inclined roller adjustment drive device 11, and the lifting rod 1101 always pushes the inclined roller adjustment drive device 11 upward, this structure is more suitable in terms of the force applied to the lifting rod 1101, so that the lifting rod 1101 does not require too high strength and 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 adjustment drive device 11, and the inclined roller adjustment drive device 11 can be pushed upward along the inclination direction of the inclined roller bracket to achieve the same adjustment effect on the inclined roller as described in Example 1.

[0086] Example 3: Based on Example 1, the difference between this embodiment and Example 1 is that the inclined roller bracket 7 adopts an inclined flat plate with multiple long holes for the inclined roller 4 to pass through, and the sliding rails 8 are provided on both sides of the long holes to slide and 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 a plurality of independent arc-shaped rods or an arc plate with a plurality of long holes.

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

[0089] Example 6: A glass plate production line comprises a loading platform, a heating furnace as described in Examples 1-5, and a unloading platform. Glass is loaded on the loading platform, passed through the heating furnace, heated and formed into a predetermined shape, and then unloaded on the unloading platform.

[0090] Another embodiment further includes a bending device positioned between the heating furnace and the unloading table. The bending device can be a mold, a rigid shaft bend, a flexible shaft bend, or the like. The glass is loaded onto the loading table, passed through the heating furnace, heated, and formed into a desired shape. It is then formed into the desired final shape by the bending device before being unloaded from the unloading table.

[0091] In another embodiment, a cooling device is further included. The cooling device is arranged after the heating furnace or after the bending device. The glass formed by heating or bending is cooled and tempered by the cooling device and finally unloaded from the unloading table.

[0092] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Those skilled in the art should understand that the specific implementation methods of the present invention can be modified or replaced with equivalents with reference to the above embodiments. Any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention are within the scope of protection 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 a plurality of horizontal rollers (3) for horizontally conveying glass are arranged at intervals from the inlet end to the outlet end of the heating chamber (2), and characterized in that: A plurality of inclined roller units (5) are provided on one side or both sides of the glass conveying direction, and the plurality of inclined roller units (5) are arranged at intervals along the glass conveying direction, and each inclined roller unit (5) comprises an inclined roller (4) and an inclined roller control device (9), one end of the inclined roller (4) is provided inside the heating chamber (2) and between two adjacent horizontal rollers (3), and the other end of the inclined roller (4) is provided outside the heating chamber (2) and connected to the inclined roller control device (9); the inclined roller control device (9) is used to control the connected inclined roller (4) to realize the following actions: lifting and lowering along a set direction, swinging up and down to adjust the tilt angle, and rotating; The inclined roller (4) is in an inclined state when participating in the bending of the glass plate, and one end of the inclined roller (4) located in the heating chamber (2) is lower than the horizontal roller (3), and one end of the inclined roller (4) located outside the heating chamber (2) is higher than the horizontal roller (3).

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

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

4. The glass sheet bending and heating furnace according to claim 3, characterized in that: The invention also includes a frame (6), wherein the inclined roller support (7) is fixedly arranged on the frame (6), and the inclined roller 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 support (7), and the other side of the lifting slider (1004) is connected to the inclined roller adjustment drive device (11), and the lifting drive motor (1002) is installed on the frame (6), and the lifting drive motor (1002) is used to control the lifting rod (1001) to drive the inclined roller adjustment drive device (11) to rise and fall along the inclined roller support (7).

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

6. The glass sheet bending and heating furnace according to claim 4, characterized in that: The inclined roller support (7) is a linear support or an arc-shaped support, and a plurality of them are arranged at intervals along the glass conveying direction.

7. The glass sheet bending and heating furnace according to claim 3, characterized in that: The inclined roller adjustment drive device (11) comprises an inclined roller angle adjustment mechanism and an inclined roller rotation mechanism, the inclined roller rotation mechanism is connected to the inclined roller angle adjustment mechanism, and the inclined roller (4) is connected to the inclined roller rotation mechanism.

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

9. The glass sheet bending and heating furnace according to claim 8, characterized in that: An angle limiting assembly is further provided between the rotating assembly and the lifting slider (1004), the angle limiting assembly comprising a limiting groove (1104) and a limiting column (1105), the limiting groove (1104) being arc-shaped and having the rotation axis of the rotating assembly as the center of the circle, and the limiting column (1105) being slidably provided in the limiting groove (1104).

10. The glass sheet bending and heating furnace according to claim 8, characterized in that: The rotating assembly comprises a worm and a worm wheel seat (1102), wherein the worm wheel seat (1102) is provided with worm teeth capable of engaging with the worm, the worm wheel seat (1102) is fixed to the inclined roller rotating mechanism, and the worm is drivingly connected to the output shaft of the angle adjustment motor (1101).

11. The glass sheet bending and heating furnace according to claim 8, characterized in that: The rotating assembly is a rotating block, the rotating block is in driving connection with the output shaft of the angle adjustment motor (1101), and the rotating block is fixed on the inclined roller rotating mechanism.

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

13. The glass sheet bending and heating furnace according to claim 1, wherein: The furnace body (1) is provided with a long hole (13) for the inclined roller (4) to pass through, and the long hole (13) is arranged in a one-to-one correspondence with the inclined roller (4). The furnace body also includes a furnace body insulation component (12) for blocking the multiple long holes (13). The furnace body insulation component (12) includes an upper insulation component above the inclined roller (4) and a lower insulation component below the inclined roller (4). The upper insulation component and the lower insulation component have the same structure and include multiple insulation strips (1201) and multiple insulation lifting rods (1202). The insulation strip (1201) is located in the long hole (13). One end of the insulation lifting rod (1202) is connected to the end of the insulation strip (1201) away from the inclined roller (4), and the other end of the insulation lifting rod (1202) is connected to the insulation lifting drive machine (1203).

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

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

16. The glass sheet bending and heating furnace according to claim 4, characterized in that: The frame (6) comprises 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: The invention comprises an upper sheet platform, a glass plate bending and heating furnace according to any one of claims 1 to 19, and a lower sheet platform which are sequentially arranged along a process route.

18. The glass sheet production line according to claim 17, wherein: It also includes bending equipment, which is arranged between the glass plate bending heating furnace and the lower plate platform.

19. The glass sheet production line according to claim 18, wherein: It also includes a cooling device, which is arranged between the bending device and the unloading platform.

20. The glass sheet production line according to claim 17, wherein: The invention also includes a cooling device which is arranged between the glass plate bending heating furnace and the lower plate platform.

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