Tempered glass bending and stretching equipment and method

Abstract

The invention discloses tempered glass bending and stretching equipment and method, and relates to the technical field of glass processing.The tempered glass bending and stretching equipment comprises a mounting frame, a fixing frame is fixedly connected to the upper end face of the mounting frame, a hydraulic air cylinder is fixedly connected to the upper end face of the fixing frame, and the telescopic end of the hydraulic air cylinder penetrates through the side wall of the fixing frame and is fixedly connected with a moving plate; the device has the advantages that the speed of the first transmission belt and the speed of the second transmission belt can be accurately controlled through driving of the servo motor and two different transmission ratios, the speed difference can be converted into accurate control over the stretching degree of glass, and the tensile strength of thick tempered glass can be greatly improved. A small speed difference is possibly needed to avoid glass breakage caused by excessive stretching, for thin tempered glass, the speed difference can be properly increased to achieve the required stretching effect, and meanwhile, the stretching speed and degree can be changed in real time in the stretching process through precise adjustment of the servo motor and the transmission ratio.

Description

Technical Field

[0001] The invention relates to the technical field of glass processing, and in particular to a tempered glass bending and stretching device and method. Background Art

[0002] Tempered glass is actually a kind of prestressed glass. In order to improve the strength of glass, chemical or physical methods are usually used to form compressive stress on the glass surface. When the glass is subjected to external force, the surface stress is first offset, thereby improving the bearing capacity and enhancing the glass's own resistance to wind pressure, cold and heat, and impact. When tempered glass is processed into a curved shape, it is necessary to first put the tempered glass into a heating furnace for heating. When the tempered glass is heated to a suitable temperature, the heated tempered glass will be directly transferred to the bending equipment, and then the bending equipment is started to slowly press the heated tempered glass. When the tempered glass is pressed into a curved state, it is necessary to wait for the tempered glass to cool before opening the bending equipment to take out the tempered glass;

[0003] During the stretching process, existing equipment may not ensure uniform distribution of stress inside the glass. This is because the force applied by the stretching mechanism to the glass may differ between the edge and the center, and between different areas. To this end, we propose a tempered glass bending and stretching device and method. Summary of the invention

[0004] The object of the present invention is to provide a tempered glass bending and stretching device and method.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tempered glass bending and stretching device comprises a mounting frame, the upper end surface of the mounting frame is fixedly connected to a fixing frame, the upper end surface of the fixing frame is fixedly connected to a hydraulic cylinder, the telescopic end of the hydraulic cylinder penetrates the side wall of the fixing frame and is fixedly connected to a moving plate, the side wall of the moving plate and the inner wall of the mounting frame are both rotatably connected to two first rotating shafts and a second rotating shaft, the surfaces of the two first rotating shafts are jointly connected to a first transmission belt for transmission, the surfaces of the two second rotating shafts are jointly connected to a second transmission belt for transmission, the upper end surface of the mounting frame is fixedly connected to a fixing plate, the lower end surface of the fixing plate is fixedly connected to a first bending plate, the inner wall of the mounting frame is fixedly connected to a three-stage hydraulic rod, the telescopic end of the three-stage hydraulic rod is fixedly connected to a second bending plate, the front face of the mounting frame is rotatably connected to a driving wheel, one end of one of the first rotating shafts penetrates the front face of the mounting frame and is fixedly connected to an adjusting wheel, one end of one of the second rotating shafts penetrates the front face of the mounting frame and is fixedly connected to a driven wheel, the surface of the adjusting wheel is jointly connected to the surface of the driving wheel for transmission A first belt is connected, and the surface of the driven wheel and the surface of the driving wheel are jointly connected by a second belt for transmission. A fixed block is fixedly connected to the front of the mounting frame, and a telescopic rod is fixedly connected to the side of the fixed block. The telescopic end of the telescopic rod is fixedly connected to the connecting frame, and the side wall of the connecting frame is rotatably connected to the tensioning wheel. The inner wall of the adjusting wheel is slidably connected to a moving block, and the inner wall of the adjusting wheel is rotatably connected to a threaded rod, and the surface of the threaded rod is threadedly connected to a connecting block, and the side of the connecting block is rotatably connected to a connecting plate, and the front of the adjusting wheel is rotatably connected to a gear, and the inner wall of the gear is rotatably connected to a two-way ratchet, and the front of the gear is rotatably connected to a rotating block, and the inner wall of the rotating block is threadedly connected to a shifting block, and the inner wall of the gear is rotatably connected to two limit blocks, and the sides of the two limit blocks are fixedly connected to second springs, and one end of the second spring facing away from the limit block is fixedly connected to the inner wall of the gear, and the front of the mounting frame is rotatably connected to a rotating toothed plate, and the surface of the rotating toothed plate meshes with the surface of the gear, and the side of one of the limit blocks is snap-fitted with the surface of the two-way ratchet.

[0006] As a further solution of the present invention: a servo motor is fixedly connected to the inner wall of the mounting frame, and an output end of the servo motor passes through the front side of the mounting frame and is fixedly connected to the center of the driving wheel.

[0007] As a further solution of the present invention: a first spring is sleeved on the surface of the telescopic rod, a left end of the first spring is fixedly connected to the side wall of the fixed block, and a right end of the first spring is fixedly connected to the side wall of the connecting frame.

[0008] As a further solution of the present invention: the surface of the tensioning wheel is rollingly connected to the side wall of the first belt.

[0009] As a further solution of the present invention: one side of the moving block is drivingly connected to the side wall of the first belt, the number of the moving blocks matches the number of the connecting plates, and the side surface of the connecting plate is rotationally connected to one side of the moving block.

[0010] As a further solution of the present invention: one end of the threaded rod passes through the front side of the adjusting wheel and is fixedly connected to the center of the bidirectional ratchet.

[0011] As a further solution of the present invention: a connecting rod is fixedly connected to the side of the second curved plate, a surface of the connecting rod is slidably connected to the inner wall of the rotating tooth plate, and a surface of the connecting rod is slidably connected to the inner wall of the mounting frame.

[0012] As a further solution of the present invention: the side wall of the movable plate is slidably connected to the inner wall of the fixed frame.

[0013] In addition, the present invention also provides a method for bending and stretching a tempered glass device, comprising the following steps:

[0014] S1, conveying the tempered glass in a softened state to the first transmission belt, and the hydraulic cylinder drives the movable plate to move downward, so that the distance between the two first transmission belts and the second transmission belt is reduced to clamp the tempered glass;

[0015] S2, then, start the servo motor to drive the driving wheel to rotate, and the driving wheel then drives the adjusting wheel and the driven wheel to rotate through the first belt and the second belt, and the adjusting wheel and the driven wheel can drive the first rotating shaft and the second rotating shaft to rotate at differential speeds, and the first transmission belt and the second transmission belt stretch the glass at different rotation speeds;

[0016] S3, the stretched glass is conveyed to between the first bending plate and the second bending plate by the second transmission belt, the distance between the first bending plate and the second bending plate is changed by adjusting the telescopic length of the three-stage hydraulic rod, and the first bending plate and the second bending plate are used to squeeze and bend the tempered glass.

[0017] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. The present invention is driven by a servo motor and uses two different transmission ratios to accurately control the speed of the first transmission belt and the second transmission belt. This speed difference can be converted into accurate control of the stretching degree of the glass. For thicker tempered glass, a smaller speed difference may be required to avoid excessive stretching and causing glass breakage, while for thinner tempered glass, the speed difference can be appropriately increased to achieve the desired stretching effect. At the same time, through the precise adjustment of the servo motor and the transmission ratio, the stretching speed and degree can be changed in real time during the stretching process. The stretching force generated on the tempered glass is relatively stable and uniform, ensuring that the stress from the edge to the center of the tempered glass can be reasonably distributed during the stretching process;

[0019] 2. The present invention drives the rotating tooth plate to rotate when the second curved plate moves up and down, and the rotating tooth plate drives the gear to rotate. When the gear rotates, the two-way ratchet is driven to rotate through the limit block, and the two-way ratchet drives the connecting block to move through the threaded rod. The connecting block can adjust the diameter of the adjusting wheel through the moving block. The staff can limit the rotation direction of the two-way ratchet respectively through the two limit blocks, and can freely control the change in the diameter of the adjusting wheel.

[0020] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the present invention;

[0022] Figure 2 Schematic diagram of the structure of the first transmission belt in an embodiment of the present invention;

[0023] Figure 3 is a schematic structural diagram of a first curved plate in an embodiment of the present invention;

[0024] Figure 4 is a schematic structural diagram of a second transmission belt in an embodiment of the present invention;

[0025] Figure 5 It is a structural schematic diagram of a connecting frame in an embodiment of the present invention;

[0026] Figure 6 It is a structural schematic diagram of an adjusting wheel in an embodiment of the present invention;

[0027] Figure 7 It is a structural schematic diagram of a moving block in an embodiment of the present invention;

[0028] Figure 8 A schematic diagram of the structure of a connecting plate in an embodiment of the present invention;

[0029] Fig. 9 A schematic diagram of the structure of a gear in an embodiment of the present invention;

[0030] Fig.10 It is a structural schematic diagram of a shift block in an embodiment of the present invention;

[0031] Fig.11 Schematic diagram of the internal cross-sectional structure of a gear in an embodiment of the present invention.

[0032] In the figure: 1, mounting frame; 2, fixing frame; 3, hydraulic cylinder; 4, moving plate; 5, fixing plate; 6, gear; 7, first bending plate; 8, three-stage hydraulic rod; 9, second bending plate; 10, driving wheel; 11, fixing block; 12, telescopic rod; 13, first spring; 14, connecting frame; 15, tensioning wheel; 16, adjusting wheel; 17, driven wheel; 18, first belt; 19, second belt; 20, first transmission belt; 21, second transmission belt; 22, servo motor; 23, second rotating shaft; 24, first rotating shaft; 25, moving block; 26, connecting block; 27, threaded rod; 28, connecting plate; 29, rotating tooth plate; 30, connecting rod; 31, two-way ratchet; 32, limit block; 33, second spring; 34, shifting block; 35, rotating block. DETAILED DESCRIPTION

[0033] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0034] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Please refer to the attached Figure 1 -Attached Fig.11The present invention discloses a tempered glass bending and stretching device, comprising a mounting frame 1, wherein the upper end surface of the mounting frame 1 is fixedly connected with a fixing frame 2, the upper end surface of the fixing frame 2 is fixedly connected with a hydraulic cylinder 3, the telescopic end of the hydraulic cylinder 3 penetrates through the side wall of the fixing frame 2 and is fixedly connected with a moving plate 4, the side wall of the moving plate 4 and the inner wall of the mounting frame 1 are both rotatably connected with two first rotating shafts 24 and a second rotating shaft 23, the surfaces of the two first rotating shafts 24 are jointly connected with a first transmission belt 20, the surfaces of the two second rotating shafts 23 are jointly connected with a second transmission belt 21, the upper end surface of the mounting frame 1 is fixedly connected with a fixing plate 5, the lower end surface of the fixing plate 5 is fixedly connected with a first bending plate 7, the inner wall of the mounting frame 1 is fixedly connected with a three-stage hydraulic rod 8, and the three-stage hydraulic rod 8 The telescopic end of the mounting frame 1 is fixedly connected with a second curved plate 9, the front of the mounting frame 1 is rotatably connected with a driving wheel 10, one end of a first rotating shaft 24 passes through the front of the mounting frame 1 and is fixedly connected with an adjusting wheel 16, one end of a second rotating shaft 23 passes through the front of the mounting frame 1 and is fixedly connected with a driven wheel 17, the surface of the adjusting wheel 16 and the surface of the driving wheel 10 are jointly connected with a first belt 18, the surface of the driven wheel 17 and the surface of the driving wheel 10 are jointly connected with a second belt 19, the front of the mounting frame 1 is fixedly connected with a fixed block 11, the side of the fixed block 11 is fixedly connected with a telescopic rod 12, the telescopic end of the telescopic rod 12 is fixedly connected with a connecting frame 14, the side wall of the connecting frame 14 is rotatably connected with a tensioning wheel 15, and the adjusting wheel 1 The inner wall of the adjusting wheel 16 is slidably connected with a moving block 25, the inner wall of the adjusting wheel 16 is rotatably connected with a threaded rod 27, the surface of the threaded rod 27 is threadedly connected with a connecting block 26, the side of the connecting block 26 is rotatably connected with a connecting plate 28, the front of the adjusting wheel 16 is rotatably connected with a gear 6, the inner wall of the gear 6 is rotatably connected with a two-way ratchet 31, the front of the gear 6 is rotatably connected with a rotating block 35, the inner wall of the rotating block 35 is threadedly connected with a shifting block 34, the inner wall of the gear 6 is rotatably connected with two limit blocks 32, the sides of the two limit blocks 32 are fixedly connected with a second spring 33, and one end of the second spring 33 away from the limit block 32 is fixedly connected to the inner wall of the gear 6, the front of the mounting frame 1 is rotatably connected with a rotating toothed plate 29, and the surface of the rotating toothed plate 29 is connected to the gear The surfaces of the wheels 6 are meshed, and the side of a limit block 32 is snapped into the surface of the two-way ratchet 31. The surface of the tensioning wheel 15 is rollingly connected to the side wall of the first belt 18. One side of the moving block 25 is transmission-connected to the side wall of the first belt 18. The number of moving blocks 25 matches the number of connecting plates 28. The side of the connecting plate 28 is rotationally connected to one side of the moving block 25. One end of the threaded rod 27 passes through the front of the adjusting wheel 16 and is fixedly connected to the center of the two-way ratchet 31. A connecting rod 30 is fixedly connected to the side of the second curved plate 9. The surface of the connecting rod 30 is slidingly connected to the inner wall of the rotating tooth plate 29. The surface of the connecting rod 30 is slidingly connected to the inner wall of the mounting frame 1. The side wall of the moving plate 4 is slidingly connected to the inner wall of the fixed frame 2.

[0036] In the first embodiment, a servo motor 22 is fixedly connected to the inner wall of the mounting frame 1, and the output end of the servo motor 22 passes through the front surface of the mounting frame 1 and is fixedly connected to the center of the driving wheel 10;

[0037] Specifically, the servo motor 22 drives the driving wheel 10 to rotate, and the driving wheel 10 drives the adjusting wheel 16 and the driven wheel 17 to rotate through the first belt 18 and the second belt 19. The different transmission ratios between the adjusting wheel 16 and the driven wheel 17 and the driving wheel 10 are used to control the differential rotation between the first transmission belt 20 and the second transmission belt 21, thereby achieving the stretching effect on the tempered glass.

[0038] In the second embodiment, a first spring 13 is sleeved on the surface of the telescopic rod 12, the left end of the first spring 13 is fixedly connected to the side wall of the fixed block 11, and the right end of the first spring 13 is fixedly connected to the side wall of the connecting frame 14;

[0039] Specifically, when adjusting the transmission ratio between the adjusting wheel 16 and the driving wheel 10, the elastic force of the first spring 13 itself can drive the tensioning wheel 15 to tension the first belt 18 through the connecting frame 14, and the transmission ratio between the adjusting wheel 16 and the driving wheel 10 can be adjusted to different ratios.

[0040] Working principle:

[0041] First, the tempered glass in a softened state is conveyed to the first transmission belt 20. At this time, the staff starts the hydraulic cylinder 3 to drive the movable plate 4 to move downward, so that the distance between the two first transmission belts 20 and the second transmission belt 21 is reduced to achieve the clamping of the tempered glass. The staff adjusts the transmission ratio between the adjusting wheel 16 and the driving wheel 10 according to the stretching effect on the tempered glass. The staff starts the three-stage hydraulic rod 8 to drive the second bending plate 9 to move downward. The second bending plate 9 drives the rotating tooth plate 29 to rotate clockwise through the connecting rod 30, and the rotating tooth plate 29 drives the gear 6 to rotate counterclockwise. At the same time, the staff rotates counterclockwise. The rotating block 35 is rotated to drive the shifting block 34 to shift one of the limit blocks 32 away from the two-way ratchet 31. At this time, the gear 6 can only drive the two-way ratchet 31 to rotate counterclockwise under the restriction of the other limit block 32. Then, the two-way ratchet 31 rotates the threaded rod 27 counterclockwise to drive the connecting block 26 to move. The connecting block 26 then drives the moving block 25 to expand outward through the connecting plate 28, which can increase the diameter of the adjusting wheel 16, thereby adjusting the transmission ratio between the adjusting wheel 16 and the driving wheel 10 to a suitable ratio. At the same time, due to the increase in the diameter of the adjusting wheel 16, the wrap angle of the first belt 18 on the adjusting wheel 16 increases, and the first The belt 18 pulls the tensioning wheel 15 to extend the first spring 13. The elastic force of the first spring 13 can keep the first belt 18 always tensioned on the adjusting wheel 16 and the driving wheel 10. After the adjustment, the staff rotates the rotating block 35 clockwise to drive the shifting block 34 to shift the limit block 32 away from the two-way ratchet 31, so that the two-way ratchet 31 can rotate freely clockwise in the gear 6. At this time, the staff starts the servo motor 22 to drive the driving wheel 10 to rotate clockwise, and the driving wheel 10 can drive the adjusting wheel 16 and the driven wheel 17 to rotate through the first belt 18 and the second belt 19. The transmission ratios between the section wheel 16 and the driven wheel 17 are different from the driving wheel 10. Therefore, the adjusting wheel 16 and the driven wheel 17 can drive the first rotating shaft 24 and the second rotating shaft 23 to rotate differentially. The first transmission belt 20 and the second transmission belt 21 stretch the tempered glass at different rotation speeds. The stretched tempered glass is transported to between the first bending plate 7 and the second bending plate 9 through the second transmission belt 21. The first bending plate 7 and the second bending plate 9 can drive the tempered glass to form a corresponding curvature. After natural cooling, the staff takes out the processed tempered glass. At this point, the entire work process ends.

[0042] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present invention.

[0044] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0045] It is apparent to those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the invention, and the changes still fall within the protection scope of the invention.

Claims

1. A tempered glass bending and stretching device, comprising a mounting frame (1), characterized in that: The upper end surface of the mounting frame (1) is fixedly connected to a fixing frame (2), the upper end surface of the fixing frame (2) is fixedly connected to a hydraulic cylinder (3), the telescopic end of the hydraulic cylinder (3) penetrates the side wall of the fixing frame (2) and is fixedly connected to a moving plate (4), the side wall of the moving plate (4) and the inner wall of the mounting frame (1) are both rotatably connected to two first rotating shafts (24) and a second rotating shaft (23), the surfaces of the two first rotating shafts (24) are jointly connected to a first transmission belt (20), the surfaces of the two second rotating shafts (23) are jointly connected to a second transmission belt (21), the upper end surface of the mounting frame (1) is fixedly connected to a fixing plate (5), and the lower end surface of the fixing plate (5) is fixedly connected to A first bending plate (7), the inner wall of the mounting frame (1) is fixedly connected to a three-stage hydraulic rod (8), the telescopic end of the three-stage hydraulic rod (8) is fixedly connected to a second bending plate (9), the front of the mounting frame (1) is rotatably connected to a driving wheel (10), one end of one of the first rotating shafts (24) passes through the front of the mounting frame (1) and is fixedly connected to an adjusting wheel (16), one end of one of the second rotating shafts (23) passes through the front of the mounting frame (1) and is fixedly connected to a driven wheel (17), the surface of the adjusting wheel (16) and the surface of the driving wheel (10) are jointly connected to a first belt (18), and the surface of the driven wheel (17) and the surface of the driving wheel (10) are jointly connected to a first belt (18). The second belt (19) is characterized in that the front of the mounting frame (1) is fixedly connected to a fixing block (11), the side of the fixing block (11) is fixedly connected to a telescopic rod (12), the telescopic end of the telescopic rod (12) is fixedly connected to a connecting frame (14), the side wall of the connecting frame (14) is rotatably connected to a tensioning wheel (15), the inner wall of the adjusting wheel (16) is slidably connected to a moving block (25), the inner wall of the adjusting wheel (16) is rotatably connected to a threaded rod (27), the surface of the threaded rod (27) is threadedly connected to a connecting block (26), the side of the connecting block (26) is rotatably connected to a connecting plate (28), the front of the adjusting wheel (16) is rotatably connected to a gear (6), and the gear (6) ) is rotatably connected to the inner wall of a bidirectional ratchet (31); the front face of the gear (6) is rotatably connected to a rotating block (35); the inner wall of the rotating block (35) is threadedly connected to a shifting block (34); the inner wall of the gear (6) is rotatably connected to two limit blocks (32); the sides of the two limit blocks (32) are fixedly connected to a second spring (33); one end of the second spring (33) facing away from the limit block (32) is fixedly connected to the inner wall of the gear (6); the front face of the mounting frame (1) is rotatably connected to a rotating tooth plate (29); the surface of the rotating tooth plate (29) is meshed with the surface of the gear (6); and the side of one of the limit blocks (32) is engaged with the surface of the bidirectional ratchet (31).

2. The tempered glass bending and stretching equipment according to claim 1, characterized in that: A servo motor (22) is fixedly connected to the inner wall of the mounting frame (1), and an output end of the servo motor (22) passes through the front side of the mounting frame (1) and is fixedly connected to the center of the driving wheel (10).

3. The tempered glass bending and stretching equipment according to claim 1, characterized in that: A first spring (13) is sleeved on the surface of the telescopic rod (12); the left end of the first spring (13) is fixedly connected to the side wall of the fixed block (11); and the right end of the first spring (13) is fixedly connected to the side wall of the connecting frame (14).

4. The tempered glass bending and stretching equipment according to claim 1, characterized in that: The surface of the tension wheel (15) is rollingly connected to the side wall of the first belt (18).

5. The tempered glass bending and stretching equipment according to claim 1, characterized in that: One side of the moving block (25) is drivingly connected to the side wall of the first belt (18), the number of the moving blocks (25) matches the number of the connecting plates (28), and the side surface of the connecting plate (28) is rotationally connected to one side of the moving block (25).

6. The tempered glass bending and stretching equipment according to claim 1, characterized in that: One end of the threaded rod (27) passes through the front side of the adjusting wheel (16) and is fixedly connected to the center of the bidirectional ratchet (31).

7. The tempered glass bending and stretching equipment according to claim 1, characterized in that: A connecting rod (30) is fixedly connected to the side surface of the second curved plate (9), and the surface of the connecting rod (30) is slidably connected to the inner wall of the rotating toothed plate (29), and the surface of the connecting rod (30) is slidably connected to the inner wall of the mounting frame (1).

8. The tempered glass bending and stretching equipment according to claim 1, characterized in that: The side wall of the movable plate (4) is slidably connected to the inner wall of the fixed frame (2).

9. A method applicable to the tempered glass bending and stretching equipment according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, conveying the tempered glass in a softened state onto the first transmission belt (20), and the hydraulic cylinder (3) drives the movable plate (4) to move downward, so that the distance between the two first transmission belts (20) and the second transmission belt (21) is reduced to clamp the tempered glass; S2, then, the servo motor (22) is started to drive the driving wheel (10) to rotate, and the driving wheel (10) then drives the adjusting wheel (16) and the driven wheel (17) to rotate through the first belt (18) and the second belt (19), and the adjusting wheel (16) and the driven wheel (17) can drive the first rotating shaft (24) and the second rotating shaft (23) to rotate at a differential speed, and the first transmission belt (20) and the second transmission belt (21) stretch the glass at different rotation speeds; S3, the stretched glass is transported to between the first bending plate (7) and the second bending plate (9) by the second transmission belt (21), the distance between the first bending plate (7) and the second bending plate (9) is changed by adjusting the telescopic length of the three-stage hydraulic rod (8), and the tempered glass is squeezed and bent by using the first bending plate (7) and the second bending plate (9).

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