Forming system and production equipment for curved glass

Abstract

The utility model relates to a forming system and production equipment of curved glass, the forming system comprises a rack and a forming unit, the forming unit comprises a forming arc plate and a plurality of forming roller ways, the forming arc plate comprises an upper forming arc plate and a lower forming arc plate, the upper forming arc plate is connected with the lower forming arc plate, and the forming roller ways are arranged on the rack. The plurality of forming roller ways are rotatably mounted between the two upper forming arc plates and between the two lower forming arc plates, and the plurality of forming roller ways on the upper forming arc plates and the plurality of forming roller ways on the lower forming arc plates are respectively fitted into an upper forming surface and a lower forming surface for forming the curved glass; the curvatures of the upper forming surface and the lower forming surface are respectively matched with the curvatures of the upper curved surface and the lower curved surface of the target curved glass. The forming system is exquisite and compact in structure and high in practicability, and the forming precision of the curved glass is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of hot bending glass forming, specifically relating to a forming system and production equipment for curved glass. Background Technology

[0002] Currently, most curved glass on the market is formed using the hard-axis bending method, especially high-precision glass such as automotive glass, home appliance glass, and electronic glass. Among these, continuous hard-axis bending is a deep-processing method with advantages such as high production efficiency, wide application, and good glass quality. However, due to the limitations of continuous hard-axis bending, glass with a small radius cannot be produced normally. For example, automotive center console screen glass with a radius of less than 600mm is still difficult to produce normally even with the addition of a flipping mechanism to the overall forming section. In addition, the continuous hard-axis bending forming section is tall and heavy, and the flipping angle should not be too large, generally less than 45°, and the flipping process is also relatively dangerous.

[0003] In the hot bending process, in order to reduce the impact of straight edges on curved glass and form a more continuous and smooth curved surface effect, fine grinding, polishing and other post-processing steps can be used to improve the smoothness of the curved glass edges and make them more harmonious and unified with the curved part. However, this post-forming processing can only improve curved glass with slight straight edge marks after hot bending. For products with serious straight edge phenomena, it is still necessary to improve the forming accuracy of the glass in the hot bending stage to reduce straight edges.

[0004] Currently, in the continuous hard-axis hot bending process, the glass passes through the hot bending zone too quickly, leaving insufficient time to form the required curved shape at high temperatures. Slowing down the conveyor speed to allow the glass more time to bend at high temperatures can reduce straight edge marks, but it also reduces production efficiency and is not conducive to the mass production of single-curved tempered glass. Therefore, it is necessary to design a forming mechanism that can still ensure high forming accuracy when the glass passes through the hot bending forming zone quickly. Utility Model Content

[0005] The purpose of this invention is to provide a forming system and production equipment for curved glass. The system has a compact and sophisticated structure, which can minimize the straight edge length of the curved glass and improve the forming accuracy of the curved glass while ensuring the stability of the flipping process and achieving controllable accuracy of the forming arc plate flipping.

[0006] To achieve the above objectives, the first technical solution adopted by this utility model is: a forming system for curved glass, comprising a frame and a forming unit. The forming unit includes forming arc plates and rigid shaft forming rollers. The forming arc plates include two upper forming arc plates and two lower forming arc plates. The upper forming arc plates and the lower forming arc plates on the same side are connected. Multiple rigid shaft forming rollers are provided and rotatably installed between the two upper forming arc plates and between the two lower forming arc plates. The multiple rigid shaft forming rollers on the upper forming arc plates and the lower forming arc plates are respectively fitted to form an upper forming surface and a lower forming surface for forming curved glass, and the curvature of the upper forming surface and the lower forming surface are respectively adapted to the curvature of the upper curved surface and the lower curved surface of the target curved glass.

[0007] Its beneficial effects are: the forming system has a sophisticated and compact structure, strong practicality, and ensures the forming accuracy of curved glass.

[0008] Furthermore, the molding unit is provided with a support frame, the lower end of which is connected to the lower molding arc plate; the molding unit is connected to a flipping mechanism provided on the frame; the molding system is also provided with constraint members for constraining the flipping of the molding unit.

[0009] Its beneficial effects are: the forming unit, driven by the flipping mechanism, can smoothly solve the problems of receiving and discharging sheets in the forming system. When receiving sheets, the inlet of the forming unit flips to a horizontal position to receive the hot glass output from the heating furnace. When discharging sheets, the outlet of the forming unit flips to a horizontal position to output the curved glass horizontally to the next stage. Moreover, the flipping of the forming unit is synchronized with the glass conveying process of the rigid shaft forming roller. The setting of the constraint member can provide constraint on the overall flipping of the forming unit, ensuring the stability and safety of the flipping process.

[0010] Furthermore, the lower forming arc plate is an arc-shaped smooth plate, and the lower contour surface of the arc-shaped smooth plate is a smooth surface. The constraint member includes a support plate and a traction constraint member. The support plate is disposed on the frame to support the arc-shaped smooth plate. The traction constraint member is located below the arc-shaped smooth plate and includes a first traction constraint member and a second traction constraint member. Both the first traction constraint member and the second traction constraint member are provided with a fixed end and a movable end. The fixed end of the first traction constraint member is fixed to the fixed structure on the sheet feeding side of the forming system, and the movable end of the first traction constraint member is connected to the sheet exit end of the arc-shaped smooth plate. The fixed end of the second traction constraint member is fixed to the fixed structure on the sheet exit side of the forming system, and the movable end of the second traction constraint member is connected to the sheet feeding end of the arc-shaped smooth plate.

[0011] Its beneficial effects are: the fixed ends of the first traction constraint member and the second traction constraint member are arranged on opposite sides, thereby constraining the arc-shaped light plate during the flipping of the plate to both sides, preventing the forming unit from sliding during the flipping process, and ensuring the relative stability of the inlet and outlet positions of the forming unit before and after each flip, so as to achieve better connection with the inlet and outlet sides of the forming system.

[0012] The first traction restraint and the second traction restraint are steel wires or chains.

[0013] Its beneficial effect is that the constraint on the flipping of the arc-shaped light plate is achieved by steel wire or chain, and the constraint parts are easier to obtain.

[0014] The constraint member can also support the forming unit. The constraint member is a flip positioning plate set on the frame. The upper surface of the flip positioning plate is in contact with the lower contour surface of the lower forming arc plate.

[0015] Its beneficial effects are: the setting of the flipping positioning plate can provide constraints, guidance and support for the overall flipping of the molding unit, ensuring the stability and safety of the flipping process.

[0016] In the above scheme, the upper surface of the flip positioning plate is provided with a rack, an arc guide groove or an arc guide rail, and the rack is a straight rack; when the flip positioning plate is provided with a rack, the lower contour surface of the lower forming arc plate is provided with teeth that mesh with the rack; when the flip positioning plate is provided with an arc guide groove or an arc guide rail, the lower contour surface of the lower forming arc plate is provided with a sliding block.

[0017] Its advantages are: it provides a variety of structural forms for flip positioning plates, making it convenient for customers to choose the right one according to their needs.

[0018] Furthermore, the flip positioning plate is provided with limiting plates at both ends and / or a baffle is provided on one side of the flip positioning plate, and both the limiting plates and the baffle are higher than the support surface of the flip positioning plate.

[0019] Its beneficial effects are: the setting of the limiting plate can prevent the forming arc plate from slipping out of the forming system when it loses its teeth or fails to flip, and the baffle can prevent the forming arc plate from moving left and right and detaching from the flipping positioning plate during the flipping process.

[0020] As the first flipping implementation of the forming unit in the above scheme, the upper end of the support frame is provided with a flipping shaft, and the two ends of the flipping shaft are respectively connected to flipping connectors, which are used to connect with the flipping mechanism.

[0021] Its beneficial effect is that the connection between the support frame and the flipping mechanism facilitates the flipping control of the formed arc plate.

[0022] Furthermore, the flipping mechanism includes a flipping roller conveyor and a flipping transmission mechanism. The flipping roller conveyors are respectively arranged on the inlet side and the outlet side of the forming system, and a flipping sprocket is arranged at each end of the flipping roller conveyor. The flipping transmission mechanism includes a clutch, a flipping motor, a flipping chain, and a transmission chain. The clutch is installed on the flipping roller conveyor, and the two ends of the transmission chain are connected to the clutches of the two flipping roller conveyors and mesh with the drive sprocket on the output shaft of the flipping motor. Two flipping chains are provided, one end of which is connected to one side of the flipping connector, and the other end is connected to the flipping sprocket on the flipping roller conveyor on the same side.

[0023] Its beneficial effects are: the use of chain and sprocket mechanism can ensure the transmission efficiency of the flipping process and avoid slippage during transmission; the setting of clutch on the flipping roller conveyor can adjust the flipping roller conveyor to active or passive rotation as needed, ensuring the smooth implementation of the flipping process.

[0024] Preferably, a damping mechanism is also provided on one side of the turning roller conveyor. The damping mechanism includes a cylinder and a damping wheel. The damping wheel is installed on the turning roller conveyor, and the cylinder is located on one side of the damping wheel. The piston of the cylinder directly or through the connected damping block makes frictional contact with the rim of the damping wheel.

[0025] Its beneficial effects are: the damping mechanism can prevent slippage when the turning roller is in a passive state, and ensure the meshing state of the turning chain and the turning sprocket, thereby improving the stability of the forming system during operation.

[0026] Furthermore, the frame is also equipped with a flipping limit device. There are two flipping limit devices on the same side of the frame, located on the bidirectional flipping path of the support frame.

[0027] Its beneficial effects are: the rotation angle range of the forming arc plate can be limited by limiting the support frame, and the position of the rotation limiting device can be set so that when the forming arc plate rotates to the point where the support frame contacts the rotation limiting device, the inlet or outlet of the forming arc plate is in a horizontal position.

[0028] As a second flipping implementation of the forming unit in the above scheme, the flipping mechanism is a rotating central shaft and a flipping motor. The rotating central shaft and the lower forming arc plate are an integral structure, and the flipping motor is connected to the rotating central shaft.

[0029] Its advantages are: instead of setting up a support frame, the rotation center shaft is integrally set on the lower forming arc plate, which simplifies the structure of the flipping mechanism.

[0030] As one implementation of the first technical solution, the two ends of the upper forming arc plate and the lower forming arc plate are connected by bolt adjustment mechanisms.

[0031] Its beneficial effect is that the bolt adjustment mechanism can finely adjust the gap between the upper forming arc plate and the lower forming arc plate, which can adapt to the forming of glass of different thicknesses.

[0032] Furthermore, the upper and lower forming arc plates are provided with inclined surface fitting structures at both ends.

[0033] Its beneficial effects are: the upper forming arc plate and the lower forming arc plate can move relative to each other along the inclined plane, thereby adjusting the distance between the upper forming arc plate and the lower forming arc plate and improving the accuracy of the spacing adjustment.

[0034] As a second implementation of the first technical solution, the molding unit further includes a lifting mechanism, which includes a lifting motor and a traction component. The lifting motor is fixed on the support frame, and the traction component is connected to both ends of the upper molding arc plate. The lifting motor drives the upper molding arc plate to rise and fall relative to the lower molding arc plate through the traction component.

[0035] Its beneficial effects are: the lifting mechanism can make a large adjustment to the distance between the upper forming arc plate and the lower forming arc plate, further adapting to the forming of thicker glass, and facilitating the cleaning of glass fragments between the rigid shaft forming rollers and the maintenance of the equipment.

[0036] Furthermore, the molding unit is provided with a guiding mechanism, which includes a guide post and a slider. The upper end of the guide post is fixedly connected to the support frame, and the lower end is fixedly connected to the lower molding arc plate. The slider slides in cooperation with the guide post and is fixed to the upper molding arc plate.

[0037] Its beneficial effect is that it can improve the stability of the upper forming arc plate lifting process.

[0038] As a third implementation of the first technical solution, the lower contour surface of the upper forming arc plate and the upper contour surface of the lower forming arc plate are arc-shaped surfaces, and the curvature of the arc-shaped surfaces is adapted to the curvature of the target curved glass.

[0039] Its beneficial effect is that it can further ensure the forming accuracy of curved glass.

[0040] Furthermore, the curvature of the lower contour surface of the lower forming arc plate matches the curvature of the arc surface.

[0041] Its beneficial effect is that the curvature of the lower contour surface of the lower forming arc plate matches the curvature of the arc surface, thereby achieving the synchronization of the lower forming arc plate and the arc surface during the flipping process; that is, when one side of the lower forming arc plate flips to the horizontal position, the same side of the arc surface also flips to the horizontal position synchronously.

[0042] As one arrangement of rigid shaft forming roller conveyors, the rigid shaft forming roller conveyors are rotatably mounted on the arc surface of the upper forming arc plate and the arc surface of the lower forming arc plate.

[0043] Its beneficial effect is that the rigid shaft forming roller is set on the arc surface of the forming arc plate. This installation method avoids machining roller mounting holes on the forming arc plate and reduces the processing difficulty.

[0044] As another arrangement of rigid shaft forming roller conveyors, the rigid shaft forming roller conveyors are rotatably mounted on the side wall of the upper forming arc plate near the arc surface and on the side wall of the lower forming arc plate near the arc surface. The upper forming arc plate and the lower forming arc plate are provided with roller conveyor mounting holes for the rigid shaft forming roller conveyors to pass through.

[0045] Its beneficial effect is that the rigid shaft forming roller is set on the forming arc plate through the roller mounting hole, which makes the installation method more secure and reliable.

[0046] Furthermore, both ends of the rigid shaft forming roller are connected to the roller mounting holes through thin-walled sleeves. The thin-walled sleeves are provided with positioning rings for axial limiting, and the positioning rings are provided with notches and grooves, which cooperate with the protrusions on the forming arc plate. One end of the rigid shaft forming roller is the power end, and a roller drive wheel is installed thereon.

[0047] Its beneficial effects are: installing thin-walled sleeves on rigid shaft forming rollers eliminates the need for bearing mounting steps at both ends of the rollers, thus maximizing the preservation of the rigid shaft forming rollers' precision and strength, reducing runout during operation, and improving forming accuracy; the thin-walled sleeves replace conventional bearings in engagement with the forming arc plate, allowing for smaller spacing between straight rigid shaft forming rollers, minimizing the straight edge length of the finished curved glass; the positioning rings can axially position the thin-walled sleeves, and the fit between the notch and the protrusions prevents the thin-walled sleeves from rotating with the rigid shaft forming rollers.

[0048] Furthermore, the power end of the rigid shaft forming roller conveyor is also provided with a pressing mechanism, which includes a pressing plate installed on the rigid shaft forming roller conveyor and a pressing head installed on the pressing plate.

[0049] Its beneficial effect is that the clamping mechanism prevents the chain or timing belt from skipping teeth during the transmission process of the hard shaft forming roller.

[0050] As a fourth embodiment of the first technical solution, a pre-forming section is also provided on the inlet side of the forming unit. The pre-forming section includes multiple hard shaft pre-forming roller tracks and an adjustment mechanism. Multiple hard shaft pre-forming roller track mounting grooves are provided on the lower contour surface of the upper forming arc plate and the upper contour surface of the lower forming arc plate. The hard shaft pre-forming roller tracks are movably arranged in the hard shaft pre-forming roller track mounting grooves through the adjustment mechanism.

[0051] Its beneficial effects are: the preforming section can preform the glass, further improving the forming accuracy of curved glass; the adjustment mechanism can adjust the position of the hard shaft preforming roller to form a suitable preforming surface.

[0052] Furthermore, the adjustment mechanism includes a mounting plate, an adjustment elongated hole on the mounting plate, and a second adjustment bolt disposed at one end of the mounting groove of the rigid shaft preforming roller conveyor. The mounting plate is fixed on the bushing at the end of the rigid shaft preforming roller conveyor, and the second adjustment bolt passes through the adjustment elongated hole to fix the mounting plate on the upper forming arc plate or the lower forming arc plate.

[0053] Its beneficial effect is that by loosening the second adjusting bolt, the hard shaft preforming roller can be slid along the mounting groove of the hard shaft preforming roller. After adjustment, tightening the second adjusting bolt will complete the adjustment of the hard shaft preforming roller.

[0054] This utility model also proposes a second technical solution: a production equipment for curved glass, comprising an upper plate, a heating section, a forming section, and an lower plate arranged in the process sequence, wherein the forming section adopts any one of the forming systems described above.

[0055] Its beneficial effects are: by using the above forming system, hot glass output from the heating section can be formed, ensuring the stability of the forming system's flipping process while minimizing the straight edge length of the curved glass and improving the forming accuracy of the curved glass.

[0056] Furthermore, a cooling device is provided between the forming section and the unloading stage, the cooling device including an upper air grid and a lower air grid arranged perpendicular to the glass conveying direction.

[0057] Its beneficial effect is that adding cooling equipment can be used to produce tempered curved glass.

[0058] Furthermore, the forming system can be adapted to the specifications and curvature of the target curved glass.

[0059] Its beneficial effect is that the molding system can be replaced according to needs, improving the applicability of the equipment.

[0060] The beneficial effects of this utility model are: the molding system of this utility model has a compact and exquisite structure, the molding arc plate can be rotated arbitrarily from 0° to 90° in both left and right directions, the flipping mechanism ensures that the flipping accuracy of the molding system is controllable, and realizes the smooth docking of the molding system with the heating section and the molding system with the lower plate stage; the spacing between the hard shaft molding rollers is 10mm-60mm, which minimizes the straight edge length of the curved glass. Attached Figure Description

[0061] 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.

[0062] Figure 1 This is a schematic diagram of the molding system in Embodiment 1 of this utility model;

[0063] Figure 2 This utility model Figure 1 A partially enlarged view of the central clamping mechanism;

[0064] Figure 3 This is a schematic diagram of the pressing mechanism in Embodiment 1 of this utility model;

[0065] Figure 4 This is a schematic diagram of the assembly structure of the hard shaft forming roller conveyor in Embodiment 1 of this utility model;

[0066] Figure 5 This is a schematic diagram of the flipping mechanism in Embodiment 1 of this utility model;

[0067] Figure 6 for Figure 5 A partially enlarged view of the intermediate damping mechanism;

[0068] Figure 7 This is a simplified diagram illustrating the flipping principle of the flipping mechanism in Embodiment 1 of this utility model;

[0069] Figure 8 This is a schematic diagram of the flipping positioning component in Embodiment 1 of this utility model;

[0070] Figure 9 This is a schematic diagram of the guiding mechanism and auxiliary guiding mechanism in Embodiment 1 of this utility model;

[0071] Figure 10 This is a schematic diagram of the preformed section in Embodiment 1 of this utility model;

[0072] Figure 11 This is a schematic diagram of the hard shaft pre-forming roller conveyor and assembly structure in Embodiment 1 of this utility model;

[0073] Figure 12 This is a schematic diagram showing the state of the first traction constraint and the second traction constraint when the forming unit is in the feeding position in Embodiment 2 of this utility model;

[0074] Figure 13This is a schematic diagram showing the state of the first and second traction constraint members when the forming unit is in the sheet ejection position in Embodiment 2 of this utility model.

[0075] Figure 14 This is a schematic diagram of the flipping of the molding system in Embodiment 3 of this utility model, wherein Figure A on the left shows the molding system in the sheet feeding posture, and Figure B on the right shows the molding system in the sheet output posture;

[0076] Figure 15 This is a schematic diagram of the flipping of the molding system in Embodiment 4 of this utility model, wherein Figure A on the left shows the molding system in the sheet feeding posture, and Figure B on the right shows the molding system in the sheet output posture.

[0077] Figure 16 This is a schematic diagram of the flipping of the molding system in Embodiment 5 of this utility model, wherein Figure A on the left shows the molding system in the sheet feeding posture, and Figure B on the right shows the molding system in the sheet output posture;

[0078] In the diagram, 100 represents the molding unit; 200 represents the frame.

[0079] 1. Rack and pinion; 2. Lower forming arc plate; 2-1. Arc-shaped smooth plate; 3. Bolt adjustment mechanism; 4. Upper forming arc plate;

[0080] 5. Support frame; 501. Support arm; 502. Tilting shaft;

[0081] 6. Hard shaft forming roller conveyor; 601. Roller conveyor sleeve; 602. Roller conveyor drive wheel; 603. Thin-walled sleeve; 6031. Positioning ring; 604. Spacer sleeve;

[0082] 7. Upper power mechanism; 8. Tilting connector; 9. Lifting motor; 10. Lower forming arc plate transmission mechanism;

[0083] 11. Preforming section; 1101. Mounting groove for rigid shaft preforming roller conveyor; 1102. Rigid shaft preforming roller conveyor; 1103. Mounting plate; 1104. Second adjusting bolt; 1105. Adjusting elongated hole; 1106. Bushing;

[0084] 12. Pressing mechanism; 1201. Pressing plate; 1202. Pressing head; 1203. Roller bearing;

[0085] 13. Guiding mechanism; 1301. Guide post; 1302. Slider; 1303. Slider mounting plate; 1304. Guide seat; 1305. Guide post mounting seat;

[0086] 14. Tilting roller conveyor;

[0087] 15. Damping mechanism; 1501. Cylinder; 1502. Damping wheel; 1503. Damping block;

[0088] 16. Flip positioning plate; 1601. Baffle;

[0089] 17. Limiting plate; 18. Tilting sprocket; 19. Electromagnetic clutch; 20. Tilting motor; 21. Redirecting sprocket; 22. Tilting limiting device; 23. Tilting chain; 24. Transmission chain; 25. Drive sprocket; 26. Inlet; 27. Outlet; 28. Rotation center shaft; 29. ​​Arc guide groove; 30. Arc guide rail; 31. First traction constraint; 32. Second traction constraint; 33. Support plate. Detailed Implementation

[0090] 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.

[0091] Example 1: As Figure 1-11 As shown, a curved glass forming system includes a forming unit 100 and a frame 200. The forming unit 100 is mounted on the frame 200 and includes forming arc plates and rigid shaft forming roller conveyors 6. The forming arc plates include upper forming arc plates 4 and lower forming arc plates 2. Two upper forming arc plates 4 are provided and arranged facing each other, and two lower forming arc plates 2 are provided and arranged facing each other. Multiple rigid shaft forming roller conveyors 6 are provided and rotatably arranged between two upper forming arc plates 4 and two lower forming arc plates 2. The upper rigid shaft forming roller conveyors 6 are arranged at intervals along the glass conveying direction and fit to form an upper forming surface, which is adapted to the curvature of the upper curved surface of the target curved glass. The lower rigid shaft forming roller conveyors 6 are arranged at intervals along the glass conveying direction and fit to form a lower forming surface, which is adapted to the curvature of the lower curved surface of the target curved glass, ensuring the forming accuracy of the curved glass. A forming channel is formed between the upper forming surface and the lower forming surface, through which glass passes and is formed during the process. One end of the forming channel is the inlet 26 of the forming unit 100, and the other end is the outlet 27 of the forming unit 100, which is used for the input and output of glass in the forming system.

[0092] The upper forming arc plate 4 and the lower forming arc plate 2 are connected at both ends by a bolt adjustment mechanism 3. The bolt adjustment mechanism 3 includes a first adjusting bolt, a nut, and bolt holes, with the bolt holes located at both ends of the upper forming arc plate 4 and the lower forming arc plate 2. During use, the gap between the upper forming arc plate 4 and the lower forming arc plate 2 can be finely adjusted according to the glass thickness using the first adjusting bolt, and the positions of the upper forming arc plate 4 and the lower forming arc plate 2 can be locked by the nut, making the upper forming arc plate 4 and the lower forming arc plate 2 a whole, providing a structural basis for the overall flipping of the forming arc plate.

[0093] Furthermore, the upper forming arc plate 4 and the lower forming arc plate 2 are provided with inclined surface fitting structures at both ends, that is, the upper forming arc plate 4 and the lower forming arc plate 2 are respectively provided with fitting inclined surfaces, so that the upper forming arc plate 4 and the lower forming arc plate 2 can move relative to each other along the inclined surfaces, thereby adjusting the distance between the upper forming arc plate 4 and the lower forming arc plate 2 and improving the accuracy of the spacing adjustment.

[0094] like Figure 1 , 5 As shown in Figure 7, the molding unit 100 of this utility model is connected to a support frame 5. The support frame 5, through its connection with the flipping mechanism, enables the molding unit 100 to be flipped, facilitating the docking of the inlet 26 and the heating section, and the docking of the outlet 27 with the lower platen or cooling equipment. The support frame 5 includes a support arm 501 and a flipping shaft 502. The support arm 501 is fixedly connected to the outer side of the lower molding arc plate 2, and each lower molding arc plate 2 is connected to two support arms 501. The upper ends of the two support arms 501 intersect at an angle so that they can be simultaneously connected to one end of the flipping shaft 502. A support rod is also connected between the two support arms 501 connected to the two lower molding arc plates 2 to enhance the strength of the support frame 5. Flipping connectors 8 are respectively sleeved at both ends of the flipping shaft 502, and each flipping connector 8 has a connecting hole on each side of the flipping shaft 502. The flipping mechanism includes a flipping roller conveyor 14 and a flipping transmission mechanism. The flipping roller conveyors 14 are rotatably arranged on the inlet and outlet sides of the forming system and are located on the frame 200 below the forming unit 100. The flipping transmission mechanism is a chain drive mechanism, including a flipping motor 20, a flipping sprocket 18, a redirecting sprocket 21, a flipping chain 23, and a transmission chain 24. One flipping motor 20 is provided and located between two flipping roller conveyors 14. A drive sprocket 25 is mounted on the output shaft of the flipping motor 20. The flipping sprocket 18 is mounted at both ends of the flipping roller conveyor 14. The redirecting sprocket 21 is mounted at both ends of a rotating shaft, which is rotatably supported on the frame 200 above the flipping roller conveyor 14. A flipping chain 23 is connected to each side of the flipping connector 8. After the flipping chain 23 passes around the redirecting sprocket 21 and reverses direction, it engages with the flipping sprocket 18 below and is fixed on the flipping sprocket 18. The transmission chain 24 is a ring chain, with its two ends connected to electromagnetic clutches 19 located at the ends of the two tilting roller conveyors 14, respectively. The middle of the transmission chain 24 meshes with the drive sprocket 25 on the tilting motor 20. Specifically, the power input end of the electromagnetic clutch 19 is connected to the transmission chain 24, and the power output end is connected to the tilting roller conveyor 14. The drive of the transmission chain 24 to rotate the tilting roller conveyor 14 is achieved through the engagement state of the electromagnetic clutch 19. Alternatively, other clutches can be used instead of the electromagnetic clutch 19 in this embodiment.

[0095] In existing technology, a heating furnace is installed at the front end of the forming system, and a cooling device or unloading platform is installed at the rear end. The cooling device includes an upper air grate and a lower air grate arranged perpendicular to the glass conveying direction. By setting a flipping mechanism, the problems of receiving and unloading sheets in the forming system can be easily solved. Figure 7 As shown, the left side is the inlet side of the molding system, and the right side is the outlet side of the molding system. When the hot glass from the heating furnace enters the molding system, the electromagnetic clutch 19 on the inlet side engages, and the power of the flipping motor 20 is transmitted to the electromagnetic clutch 19 on the inlet side via the transmission chain 24, thereby driving the connected flipping roller 14 to rotate. This causes the flipping chain 23 on the inlet side to pull the support frame 5 downward, thus flipping the molding arc plate until the inlet 26 of the molding unit 100 is flush with the conveying plane of the heating furnace. At the same time, the electromagnetic clutch 19 on the right side is disengaged, and the part of the electromagnetic clutch 19 connected to the transmission chain 24 idles. The flipping of the molding arc plate causes the flipping chain 23 on the right side to move upward, pulling the connected flipping roller 14 to rotate passively. When the formed curved glass needs to be output from the forming system, the electromagnetic clutch 19 on the inlet side disengages, and the electromagnetic clutch 19 on the outlet side engages. The flipping motor 20 drives the flipping roller conveyor 14 on the outlet side to rotate via the transmission chain 24. The flipping chain 23 pulls down the support frame 5, causing the forming arc plate to flip, so that the output port 27 of the forming unit 100 is flush with the conveying plane of the cooling equipment or the unloading table. During the flipping process, the forming unit can flip arbitrarily from 0° to 90° in both directions, and the flipping of the forming unit 100 is synchronized with the glass conveying process of the rigid shaft forming roller conveyor 6, thereby ensuring the smooth output of the curved glass and the forming accuracy.

[0096] Furthermore, such as Figure 5 , 6 As shown, a damping mechanism 15 is also provided on the turning roller conveyor 14. The damping mechanism 15 includes a damping wheel 1502 fixed on the turning roller conveyor 14 and a cylinder 1501 disposed on one side of the damping wheel 1502. A damping block 1503 is fixed to the piston end of the cylinder 1501, and the damping block 1503 is in frictional contact with the rim of the damping wheel 1502; or, the piston end of the cylinder 1501 is in direct contact with the damping wheel 1502. The cylinder 1501 applies a certain pressure to the damping wheel 1502 through the damping block 1503, which can prevent the turning roller conveyor 14 from slipping when it is in a passive state, ensure the meshing state of the turning chain 23 and the turning sprocket 18, and thus improve the stability of the forming system during operation.

[0097] Preferred, such as Figure 5 As shown, the lower forming arc plate 2 is also supported on the flipping positioning plate 16, which can provide support for the forming unit 100 and guide it during the flipping process.

[0098] like Figure 1 ,5 As shown in Figure 8, the flipping positioning plate 16 is fixed on the frame 200 of the forming system. In this embodiment, a rack 1 is provided on the upper surface of the flipping positioning plate 16, and correspondingly, teeth that mesh with the rack 1 are provided on the lower contour surface of the lower forming arc plate 2. During the flipping process of the forming unit 100, the teeth of the lower forming arc plate 2 mesh with the rack 1 on the flipping positioning plate 16, which can prevent the forming arc plate from moving back and forth.

[0099] Furthermore, limiting plates 17 protruding from the rack 1 are fixedly provided at both ends of the flip positioning plate 16, and baffles 1601 protruding from the rack 1 are provided on the outer side of the flip positioning plate 16. The limiting plates 17 can prevent the forming arc plate from slipping out of the forming system when the forming arc plate is dislodged or flipping is incorrect, and the baffles 1601 can prevent the forming arc plate from moving left and right and detaching from the flip positioning plate 16 during the flipping process.

[0100] like Figure 5 As shown, in another embodiment of this example, a flipping limiting device 22 is also provided on the frame 200 where the molding system is located. The flipping limiting device 22 is a limiting post or a limiting block. On the same side of the frame 200, there are two flipping limiting devices 22, which are respectively located on the bidirectional flipping path of the support frame 5. By controlling the position of the flipping limiting device 22, the molding arc plate is flipped so that when the support arm 501 contacts the flipping limiting device 22, the inlet 26 or outlet 27 of the molding unit 100 is in a horizontal position.

[0101] In this invention, the forming arc plate is provided with an arc-shaped surface, and the curvature of the arc-shaped surface is adapted to the curvature of the target curved glass. Preferably, the arc-shaped surface of the forming arc plate includes the lower contour surface of the upper forming arc plate 4 and the upper contour surface of the lower forming arc plate 2; the curvature of the arc-shaped surface being adapted to the curvature of the target curved glass means that the lower contour surface of the upper forming arc plate 4 is adapted to the curvature of the upper curved surface of the target curved glass, and the upper contour surface of the lower forming arc plate 2 is adapted to the curvature of the lower curved surface of the target curved glass.

[0102] In this embodiment, the curvature of the lower contour surface of the lower forming arc plate 2 is adapted to the curvature of the upper contour surface of the lower forming arc plate 2, thereby making the curvature of the lower contour surface of the lower forming arc plate 2 match the curvature of the arc surface, so as to ensure that the lower forming arc plate 2 flips synchronously with the arc surface during the flipping process, that is, when one side of the lower forming arc plate 2 flips to the horizontal position, the same side of the arc surface also flips to the horizontal position synchronously.

[0103] In one embodiment of this invention, the rigid shaft forming roller conveyor 6 is rotatably disposed on the arc-shaped surfaces of the upper forming arc plate 4 and the lower forming arc plate 2. The rigid shaft forming roller conveyor 6 is disposed on the arc-shaped surfaces, which reduces processing difficulty while ensuring that the forming surface fitted by the rigid shaft forming roller conveyor 6 matches the curvature of the target curved glass. During installation, a connector is used to fix the rigid shaft forming roller conveyor 6 to the arc-shaped surface. The connector includes a connecting plate and roller conveyor mounting holes disposed on the connecting plate. The connecting plate is detachably connected to the forming arc plate. The rigid shaft forming roller conveyor 6 is rotatably installed through the roller conveyor mounting holes, and the spacing between the rigid shaft forming roller conveyors 6 is 10mm-60mm.

[0104] In another embodiment of this invention, the rigid shaft forming roller conveyor 6 is rotatably mounted on the sidewall of the upper forming arc plate 4 near the arc surface and on the sidewall of the lower forming arc plate 2 near the arc surface. The forming arc plates have roller mounting holes for the rigid shaft forming roller conveyor 6 to pass through. The rigid shaft forming roller conveyor 6 is mounted on the forming arc plate through the roller mounting holes, ensuring that the forming surface fitted by the rigid shaft forming roller conveyor 6 matches the curvature of the target curved glass surface. The spacing between the rigid shaft forming roller conveyors 6 is 10mm-60mm. Specifically, the assembly structure of the rigid shaft forming roller conveyor 6 is as follows: Figure 4 As shown, the rigid shaft forming roller conveyor 6 is a rigid shaft straight roller conveyor. Both ends of the rigid shaft forming roller conveyor 6 are connected to the roller conveyor mounting holes of the forming arc plate via thin-walled sleeves 603. The rigid shaft forming roller conveyor 6 can rotate within the thin-walled sleeves 603. The thin-walled sleeves 603 replace bearings in the connection with the forming arc plate, reducing the spacing between adjacent rigid shaft forming roller conveyors 6 and minimizing the straight edge length of the curved glass. One end of the rigid shaft forming roller conveyor 6 is the power end, equipped with a roller conveyor drive wheel 602 to achieve rotation. A spacer 604 is provided on the outer side of the roller conveyor drive wheel 602 to axially position it. The roller conveyor drive wheel 602 is either a roller conveyor sprocket or a roller conveyor synchronous belt pulley.

[0105] The use of thin-walled sleeve 603 in the rigid shaft forming roller conveyor eliminates the need for bearing mounting steps at both ends of the roller conveyor, thus maximizing the preservation of the precision and strength of the rigid shaft forming roller conveyor 6, reducing the amount of runout during operation, and improving forming accuracy.

[0106] Furthermore, a roller sleeve 601 is provided on the rigid shaft forming roller 6. The roller sleeve 601 is made of aramid, metal fiber, blended fabric, ceramic fiber or other roller sleeve materials known to those skilled in the art. The roller sleeve 601 is in direct contact with the glass, which can improve the surface quality of the curved glass.

[0107] Furthermore, the thin-walled sleeve 603 is provided with two positioning rings 6031, the distance between the two positioning rings 6031 matching the thickness of the forming arc plate to prevent axial movement of the thin-walled sleeve 603. Preferably, the positioning ring 6031 is also provided with a notch, and the surface of the forming arc plate is provided with a protrusion. The protrusion and the notch fit together to prevent the thin-walled sleeve 603 from rotating with the rigid shaft forming roller 6.

[0108] like Figure 1 , 2 As shown, in another embodiment of this invention, the power end of the rigid shaft forming roller conveyor 6 uses a roller conveyor sprocket and chain for transmission, and the power end of the rigid shaft forming roller conveyor 6 is also equipped with a pressing mechanism 12 for pressing on the chain to maintain the meshing state between the chain and the roller conveyor sprocket. The structure of the pressing mechanism 12 is as follows: Figure 3 As shown, the device includes a pressure plate 1201 and a pressure head 1202. The pressure plate 1201 has two mounting holes, which are respectively connected to two rigid shaft forming roller tracks 6. Roller bearings 1203 are installed in the mounting holes. The ends of the rigid shaft forming roller tracks 6 are installed in the roller bearings 1203, enabling the rigid shaft forming roller tracks 6 to rotate relative to the pressure plate 1201. The pressure head 1202 is located between the two rigid shaft forming roller tracks 6 and presses against the chain. The pressure head 1202 is equipped with a pressure roller that can rotate freely to reduce friction with the chain. Specifically, in the pressure mechanism 12 on the side of the upper forming arc plate 4, the pressure head 1202 presses above the chain, and in the pressure mechanism 12 on the side of the lower forming arc plate 2, the pressure head 1202 presses below the chain.

[0109] In other embodiments, a synchronous belt drive is used, and a roller synchronous pulley is provided at the end of the rigid shaft forming roller 6. At this time, the pressing head presses on the synchronous belt to ensure the meshing of the synchronous belt and the roller synchronous pulley.

[0110] Preferably, at least one of the two mounting holes on the pressing plate 1201 is an oblong hole, which facilitates the movement of the arc forming roller 6 in the oblong hole, thereby enabling the pressing mechanism 12 to be adjusted as the distance between the hard shaft forming rollers 6 is adjusted.

[0111] Preferably, in the rigid shaft forming roller conveyor 6, the rigid shaft forming roller conveyor 6 located on the upper forming arc plate 4 and the rigid shaft forming roller conveyor 6 located on the lower forming arc plate 2 are arranged with opposite-side drive, which can save more installation space and further reduce the spacing of the rigid shaft forming roller conveyors 6. Moreover, the rigid shaft forming roller conveyor 6 located on the upper forming arc plate 4 and the rigid shaft forming roller conveyor 6 located on the lower forming arc plate 2 are each driven by a corresponding power mechanism, such as... Figure 1As shown, an upper power mechanism 7 is provided above the upper forming arc plate 4, and several sprockets are provided on the side of the upper forming arc plate 4 as the upper forming arc plate transmission mechanism. They cooperate with the chain to realize the rotation of the hard shaft forming roller 6 in the upper forming arc plate 4. Correspondingly, a lower power mechanism is provided below the lower forming arc plate 2, and several sprockets are provided on the side of the lower forming arc plate 2 as the lower forming arc plate transmission mechanism 10. They cooperate with the chain to realize the rotation of the hard shaft forming roller 6 in the lower forming arc plate 2.

[0112] For example Figure 1 As shown, in another embodiment of this invention, the support frame 5 of the forming system is further equipped with a lifting mechanism for raising the upper forming arc plate 4. The lifting mechanism includes a lifting motor 9 and a chain. The chain is connected to both ends of the upper forming arc plate 4. The lifting motor 9 drives the chain to achieve synchronous lifting and lowering of both sides of the upper forming arc plate 4. This facilitates the cleaning of broken glass from the rigid shaft forming roller conveyor 6 and also facilitates maintenance in case of system malfunction. Alternatively, a wire rope or other traction component can be used instead of a chain to achieve lifting and traction of the upper forming arc plate 4.

[0113] Furthermore, such as Figure 1 and 9 As shown, a guiding mechanism 13 is also provided in the molding system. The guiding mechanism 13 includes a guide post 1301 and two sliders 1302. The upper end of the guide post 1301 is fixedly connected to the support frame 5, and the lower end of the guide post 1301 is fixedly connected to the outer side of the lower molding arc plate 2. The two sliders 1302 are arranged along the length direction of the guide post 1301 and slide in cooperation with the guide post 1301. The two sliders 1302 are fixed on the slider mounting plate 1303, which is fixed to the outer side of the upper molding arc plate 4. When the lifting mechanism drives the upper molding arc plate 4 to rise and fall, the sliders 1302 slide along the guide post 1301, which can improve the stability of the upper molding arc plate 4 during the rising and falling process.

[0114] like Figure 1 , 10 As shown in Figure 11, in another embodiment of this invention, a pre-forming section 11 is further provided at one end of the inlet 26 of the forming unit. The pre-forming section 11 includes multiple rigid shaft pre-forming rollers 1102. The two ends of the rigid shaft pre-forming rollers 1102 are movably connected to the upper forming arc plate 4 and the lower forming arc plate 2 via mounting plates 1103, respectively. The multiple rigid shaft pre-forming rollers 1102 are fitted to form a pre-forming surface, including an upper pre-forming surface and a lower pre-forming surface, which are respectively connected to the upper forming surface and the lower forming surface. Figure 8As shown, multiple rigid shaft preforming roller mounting grooves 1101 are provided on the arc surfaces of the upper forming arc plate 4 and the lower forming arc plate 2, and the rigid shaft preforming roller mounting grooves 1101 of the upper forming arc plate 4 and the lower forming arc plate 2 are arranged alternately vertically. The two ends of the rigid shaft preforming roller 1102 are located within the rigid shaft preforming roller mounting grooves 1101 and can slide radially along the rigid shaft preforming roller mounting grooves 1101 to adjust the position of the rigid shaft preforming roller 1102 and realize the adjustment of the preforming surface. Figure 10 , 11 As shown, the rigid shaft preforming roller conveyor 1102 is a straight roller conveyor with bushings 1106 fitted at both ends. Two mounting plates 1103 are fixedly connected to both ends of the bushings 1106. The distance between the two mounting plates 1103 is the same as the thickness of the forming arc plate, so that the two mounting plates are clamped on the inner and outer sides of the forming arc plate respectively. The mounting plates 1103 are provided with adjusting elongated holes 1105. Second adjusting bolts 1104 are provided on the upper forming arc plate 4 and the lower forming arc plate 2. The radial movement of the rigid shaft preforming roller conveyor 1102 is achieved by changing the position of the second adjusting bolts 1104 in the adjusting elongated holes 1105.

[0115] Example 2

[0116] like Figure 12 , 13 As shown, the difference between this embodiment and Embodiment 1 is that in this embodiment, the lower forming arc plate 2 is an arc-shaped smooth plate 2-1, that is, the lower contour surface of the arc-shaped smooth plate 2-1 is a smooth arc surface. Based on this, a traction constraint is used to constrain the rotation of the forming unit 100, preventing slippage during rotation and achieving rolling rotation of the forming unit 100. In this embodiment, after the rotation positioning plate 16 is no longer provided, a support plate 33 is still needed to support the forming unit 100, and the support plate 33 is fixed on the frame 200.

[0117] The traction constraint is located below the arc-shaped light plate 2-1, and includes a first traction constraint 31 and a second traction constraint 32. Both the first traction constraint 31 and the second traction constraint 32 are provided with a fixed end and a movable end; the fixed end of the first traction constraint 31 is fixed to the fixed structure on the sheet feeding side of the forming system, and the movable end of the first traction constraint 31 is connected to the sheet output end of the arc-shaped light plate 2-1; the fixed end of the second traction constraint 32 is fixed to the fixed structure on the sheet output side of the forming system, and the movable end of the second traction constraint 32 is connected to the sheet feeding end of the arc-shaped light plate 2-1.

[0118] The fixing structure on the feeding side of the molding system refers to the portion of the frame 200 located on the feeding side of the molding system or the portion of the support plate 33 located on the feeding side of the molding system. Similarly, the fixing structure on the extrusion side of the molding system refers to the portion of the frame 200 located on the extrusion side of the molding system or the portion of the support plate 33 located on the extrusion side of the molding system.

[0119] like Figure 12 As shown, when flipping from the infeed position to the outfeed position, the forming unit 100 needs to flip to the right. The first traction constraint 31 can provide a downward inclined pulling force to the arc-shaped light plate 2-1 to prevent the forming unit 100 from sliding to the right. After flipping, the outfeed end of the forming unit 100 is connected to the downstream unloading platform or cooling equipment. Moreover, after each flip, the position of the outfeed end of the forming unit 100 is fixed, which can ensure smooth outfeeding.

[0120] like Figure 13 As shown, when flipping from the exit position to the infeed position, the forming unit 100 needs to flip to the left. The second traction constraint 32 can provide a downward inclined pulling force to the arc-shaped light plate 2-1 to prevent the forming unit 100 from sliding to the left. After flipping, the infeed end of the forming unit 100 is connected to the outlet of the heating furnace. After each flip, the position of the infeed end of the forming unit 100 is fixed, which can ensure that the glass enters the forming unit 100 smoothly.

[0121] Example 3

[0122] like Figure 14 As shown, the difference between Embodiment 3 and Embodiment 1 is that in this embodiment, a rotating central shaft 28 is provided on the lower forming arc plate 2, and the rotating central shaft 28 is connected to a motor drive. Therefore, the flipping roller conveyor and flipping transmission mechanism of Embodiment 1 are no longer provided. During operation, the motor drives the rotating central shaft 28 to rotate to the left, as shown... Figure 14 As shown in Figure A, the inlet 26 is rotated until it is flush with the conveying plane of the heating furnace, so that the forming system can smoothly receive the sheet; after the forming system receives the sheet, the motor drives the rotating center shaft 28 to rotate to the right, as shown in Figure A. Figure 14 As shown in B, the sheet outlet 27 is flipped until it is flush with the conveying plane of the cooling equipment or the unloading platform, so that the forming system can smoothly eject the sheet.

[0123] Example 4

[0124] like Figure 15 As shown, the difference between Embodiment 4 and Embodiment 3 is that the bottom of the lower forming arc plate 2 is provided with an arc guide groove 29, so that the forming arc plate can be flipped along the arc guide groove 29 during flipping, thereby improving the stability of the flipping process. The arc guide groove 29 is provided on the flipping positioning plate 16.

[0125] Example 5

[0126] like Figure 16As shown, the difference between Embodiment 5 and Embodiment 3 is that an arc guide rail 30 is provided at the bottom of the lower forming arc plate 2. The forming arc plate is slidably connected to the arc guide rail 30 through a sliding block, so that the forming arc plate can rotate along the arc guide rail 30 during flipping, thereby improving the stability of the flipping process. The arc guide rail 30 is provided on the flipping positioning plate 16.

[0127] Example 6

[0128] A curved glass production equipment includes an upper plate, a heating section, a forming section, and an lower plate arranged in sequence. The forming section adopts the forming system as described in Example 1, which can form hot glass output from the heating section. This ensures the stability of the forming system during the flipping process while minimizing the straight edge length of the curved glass and improving the forming accuracy of the curved glass.

[0129] In one embodiment, the forming system can be adapted to the specifications and curvature of the target curved glass.

[0130] The molding system can be replaced as needed, improving the equipment's applicability. Specifically, replacement can be done using either a hoisting method or a quick-release method. The hoisting method only requires replacing the molding arc plate above the flip-positioning plate 16. During operation, the entire set of molding arc plates above the flip-positioning plate 16 is hoisted from above and moved out of the molding station. Then, the replacement set of molding arc plates is moved into the molding station and lowered onto the toothed plate, completing the replacement. The quick-release method involves placing the flip-positioning plate 16 along with the entire set of molding arc plates on trolleys on both sides of the molding system. During operation, one trolley slides the flip-positioning plate 16 and the entire set of molding arc plates along the guide rail out of the molding station; then, the other trolley slides the replacement flip-positioning plate 16 and the other set of molding arc plates along the guide rail back to the molding station, completing the replacement.

[0131] 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 system for forming a curved glass sheet, comprising a forming unit (100) and a gantry (200), characterized in that: The forming unit (100) comprises forming arc plates and hard shaft forming roller beds (6), the forming arc plates comprise two upper forming arc plates (4) and two lower forming arc plates (2), the upper forming arc plates (4) are connected with the lower forming arc plates (2) of the same side, the hard shaft forming roller beds (6) are provided in plurality and rotatably installed between the two upper forming arc plates (4) and the two lower forming arc plates (2), the plurality of hard shaft forming roller beds (6) on the upper forming arc plates (4) and the lower forming arc plates (2) are respectively fitted into upper forming surfaces and lower forming surfaces for forming curved surface glass, and the curvatures of the upper forming surfaces and the lower forming surfaces are respectively matched with the curvatures of the upper curved surfaces and the lower curved surfaces of target curved surface glass.

2. The forming system of claim 1, wherein: The forming unit (100) is provided with a support frame (5), the lower end of the support frame (5) is connected with the lower forming arc plate (2); the forming unit (100) is connected with a turnover mechanism arranged on the rack (200); the forming system is further provided with a constraint member for constraining the turnover of the forming unit (100).

3. The forming system of claim 2, wherein: The lower forming arc plate (2) is an arc-shaped light plate (2-1), the lower profile surface of the arc-shaped light plate (2-1) is a smooth surface; the constraint member comprises a support plate (33) and a traction constraint member, the support plate (33) is arranged on the rack (200) to support the arc-shaped light plate (2-1), the traction constraint member is located below the arc-shaped light plate (2-1) and comprises a first traction constraint member (31) and a second traction constraint member (32); the first traction constraint member (31) and the second traction constraint member (32) are both provided with fixed ends and movable ends; the fixed end of the first traction constraint member (31) is fixed on a fixed structure on the sheet feeding side of the forming system, the movable end of the first traction constraint member (31) is connected to the sheet discharging end of the arc-shaped light plate (2-1); the fixed end of the second traction constraint member (32) is fixed on a fixed structure on the sheet discharging side of the forming system, and the movable end of the second traction constraint member (32) is connected to the sheet feeding end of the arc-shaped light plate (2-1).

4. The forming system of claim 3, wherein: The first traction constraint member (31) and the second traction constraint member (32) are steel wires or chains.

5. The forming system of claim 2, wherein: The constraint member can also support the forming unit (100), and the constraint member is a turnover positioning plate (16) arranged on the rack (200), the upper surface of the turnover positioning plate (16) is in matching contact with the lower profile surface of the lower forming arc plate (2).

6. The forming system of claim 5, wherein: The upper surface of the turnover positioning plate (16) is provided with a rack (1), a circular arc guide groove (29) or a circular arc guide rail (30), and the rack (1) is a linear rack; when the rack (1) is arranged on the turnover positioning plate (16), the lower profile surface of the lower forming arc plate (2) is provided with teeth engaged with the rack (1); when the circular arc guide groove (29) or the circular arc guide rail (30) is arranged on the turnover positioning plate (16), the lower profile surface of the lower forming arc plate (2) is provided with a sliding block.

7. The forming system of claim 6, wherein: The two ends of the turnover positioning plate (16) are provided with limiting plates (17), and / or one side of the turnover positioning plate (16) is provided with a baffle (1601), the limiting plates (17) and the baffle (1601) are higher than the supporting surface of the turnover positioning plate (16).

8. A forming system according to any one of claims 2 to 7, characterised in that: The upper end of the supporting frame (5) is provided with a turnover shaft (502), the two ends of the turnover shaft (502) are respectively connected with turnover connecting pieces (8), and the turnover connecting pieces (8) are used for being connected with the turnover mechanism.

9. The forming system of claim 8, wherein: The turnover mechanism comprises turnover roller ways (14) and a turnover transmission mechanism, the turnover roller ways (14) are respectively arranged at the inlet side and the outlet side of the forming system, and one turnover sprocket (18) is arranged at each of the two ends of the turnover roller way (14); the turnover transmission mechanism comprises a clutch, a turnover motor (20), turnover chains (23) and a transmission chain (24), the clutch is installed on the turnover roller way (14), the two ends of the transmission chain (24) are connected to the clutches of the two turnover roller ways (14) and are in meshing connection with a driving sprocket (25) on the output shaft of the turnover motor (20); the turnover chains (23) are provided in two, one end of the turnover chains (23) is connected with one side of the turnover connecting piece (8), and the other end is connected with the turnover sprocket (18) on the same side of the turnover roller way (14).

10. The forming system of claim 9, wherein: The side of the turnover roller way (14) is further provided with a damping mechanism (15), the damping mechanism (15) comprises a cylinder (1501) and a damping wheel (1502), the damping wheel (1502) is installed on the turnover roller way (14), and the cylinder (1501) is located at one side of the damping wheel (1502); a piston of the cylinder (1501) is in frictional contact with the rim of the damping wheel (1502) directly or through a connected damping block (1503).

11. The forming system of claim 8, wherein: The rack (200) is further provided with turnover limiting devices (22), the two turnover limiting devices (22) are arranged on the same side of the rack (200) and are located on the bidirectional turnover paths of the supporting frames (5).

12. The forming system of claim 2, wherein: The turnover mechanism comprises a rotation center shaft (28) and a turnover motor (20), the rotation center shaft (28) and the lower forming arc plate (2) are in an integrated structure, and the turnover motor (20) is connected with the rotation center shaft (28).

13. The forming system of claim 1, wherein: The two ends of the upper forming arc plate (4) and the lower forming arc plate (2) are connected through bolt adjusting mechanisms (3) respectively.

14. The forming system of claim 13, wherein: The two ends of the upper forming arc plate (4) and the lower forming arc plate (2) are provided with inclined surface fitting structures.

15. The forming system of claim 2, wherein: The forming unit (100) further comprises a lifting mechanism, the lifting mechanism comprises a lifting motor (9) and a traction piece, the lifting motor (9) is fixed on the supporting frame (5), the traction piece is connected with the two ends of the upper forming arc plate (4), and the lifting motor (9) drives the upper forming arc plate (4) to lift relative to the lower forming arc plate (2) through the traction piece.

16. The forming system of claim 15, wherein: The forming unit (100) is provided with a guide mechanism (13), the guide mechanism (13) includes a guide column (1301) and a sliding block (1302), the upper end of the guide column (1301) is fixedly connected with the support frame (5), the lower end is fixedly connected with the lower forming arc plate (2), the sliding block (1302) is in sliding fit with the guide column (1301), and the sliding block (1302) is fixed on the upper forming arc plate (4).

17. The forming system of claim 2, wherein: The lower contour surface of the upper forming arc plate (4) and the upper contour surface of the lower forming arc plate (2) are arc surfaces, and the curvature of the arc surfaces is matched with the curvature of the target curved surface glass.

18. The forming system of claim 17, wherein: The curvature of the lower contour surface of the lower forming arc plate (2) matches the curvature of the arc surface.

19. The forming system of claim 17, wherein: The hard shaft forming roller (6) is rotatably arranged on the arc surface of the upper forming arc plate (4) and the arc surface of the lower forming arc plate (2), and the spacing between the hard shaft forming rollers (6) is 10mm-60mm.

20. The forming system of claim 17, wherein: The hard shaft forming roller (6) is rotatably arranged on the sidewall close to the arc surface of the upper forming arc plate (4) and the sidewall close to the arc surface of the lower forming arc plate (2), the upper forming arc plate (4) and the lower forming arc plate (2) are provided with roller installation holes for the hard shaft forming roller (6) to pass through, and the spacing between the hard shaft forming rollers is 10mm-60mm.

21. The forming system of claim 20, wherein: The two ends of the hard shaft forming roller (6) are connected in the roller installation hole through a thin-walled sleeve (603), the thin-walled sleeve (603) is provided with a positioning ring (6031) for axial limiting, and a notch groove is arranged on the positioning ring (6031) and matched with a protrusion on the forming arc plate; one end of the hard shaft forming roller (6) is a power end, and a roller transmission wheel (602) is arranged on the power end.

22. The forming system of claim 21, wherein: The power end of the hard shaft forming roller (6) is further provided with a pressing mechanism (12), and the pressing mechanism includes a pressing plate (1201) arranged on the hard shaft forming roller and a pressing head (1202) arranged on the pressing plate (1201).

23. The forming system of claim 1, wherein: The one side of the forming unit (100) is further provided with a preforming section (11), the preforming section (11) includes a plurality of hard shaft preforming rollers (1102) and an adjusting mechanism; a plurality of hard shaft preforming roller installation grooves (1101) are arranged on the lower contour surface of the upper forming arc plate (4) and the upper contour surface of the lower forming arc plate (2), and the hard shaft preforming roller (1102) is movably arranged in the hard shaft preforming roller installation groove (1101) through the adjusting mechanism.

24. The forming system of claim 23, wherein: The adjusting mechanism includes a mounting plate (1103), an adjusting long hole (1105) on the mounting plate (1103), and a second adjusting bolt (1104) arranged at one end of the hard shaft preforming roller installation groove (1101), the mounting plate (1103) is fixed on the shaft sleeve (1106) at the end of the hard shaft preforming roller (1102), and the second adjusting bolt (1104) passes through the adjusting long hole (1105) to fix the mounting plate (1103) on the upper forming arc plate (4) or the lower forming arc plate (2).

25. An apparatus for producing a curved glass sheet, comprising an upender, a heating section, a forming section, and a downender arranged in a process sequence, characterized in that: The forming section adopts the forming system according to any one of claims 1-24.

26. The production apparatus according to claim 25, characterized by: The cooling equipment is arranged between the forming section and the lower sheet table, and comprises an upper air grid and a lower air grid arranged perpendicularly to the glass conveying direction.

27. The production apparatus according to claim 25 or 26, characterized by: The forming system can be adaptively replaced according to the specifications and curvature of the target curved glass.

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