Glass hard shaft bending arc changing mechanism and hard shaft bending equipment

Abstract

The utility model relates to a glass hard shaft bending arc-changing mechanism and hard shaft bending equipment, the arc-changing mechanism comprises a plurality of arc-changing units which are rotatably connected and connecting rods for connecting adjacent arc-changing units, each arc-changing unit comprises an active arc-changing unit provided with an arc adjusting mechanism, and the active arc-changing unit is provided with an active arc adjusting piece; all the active arc-adjusting pieces are connected into an arc-adjusting transmission system through an arc-adjusting connecting assembly. The arc-adjusting driving unit is connected with the arc-adjusting transmission system from a plurality of arc-adjusting power input point positions distributed along the glass conveying direction; or all the active arc-adjusting pieces are divided into a plurality of groups along the glass conveying direction, and the plurality of active arc-adjusting pieces in each group are connected into an arc-adjusting transmission system through a set of arc-adjusting connecting assembly; the arc adjusting driving unit is connected with the arc adjusting transmission systems. The hard shaft bending equipment comprises two sets of arc changing mechanisms, a traction mechanism and a plurality of hard shaft roller ways. According to the utility model, arc-adjusting power is dispersed and input at multiple points, so that the transmission error is reduced, the transmission efficiency is improved, and the arc-forming precision of glass is further ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the glass forming equipment field, concretely relates to a glass hard shaft bending arc changing mechanism and hard shaft bending equipment. BACKGROUND

[0002] The glass hard shaft bending equipment usually adopts the arc changing mechanism as patent CN202849242U or patent CN210030415U, and the arc changing mechanism includes a plurality of arc changing units connected by rotating shafts and connecting rods connecting adjacent arc changing units, and the arc changing mechanism is adjusted by chain wheels or gears to adjust the arc changing mechanism in the arc changing mechanism, and the two ends of the arc changing mechanism are pulled up by the chain and other pulling mechanisms after adjustment, so that the arc changing mechanism is raised as a whole, and the required arc shape is formed to make the glass bend and form.

[0003] Usually, the arc changing power source of the arc changing mechanism is arranged at the middle position of the arc changing mechanism in the glass conveying direction, and the power is transmitted from the middle arc changing unit to the end arc changing unit by the chain wheel or gear. When the arc changing mechanism is long in the glass conveying direction, due to the transmission backlash of the chain wheel and gear, the stretching of the chain, the accumulation of the loss in the transmission process and other problems, the error of the outer arc changing unit of the arc changing mechanism is larger than that of the middle arc changing unit, for example, the arc changing chain wheel or gear of the middle arc changing unit of the arc changing mechanism has rotated one circle, while the arc changing chain wheel or gear of the outermost arc changing unit has only rotated half a circle, which finally leads to poor arc forming precision of the glass. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a glass hard shaft bending arc changing mechanism and hard shaft bending equipment, which adopts multi-point driving arc changing, drives the arc changing mechanism to change the arc from multiple points in the glass conveying direction at the same time, disperses the arc changing power to multiple points, reduces the transmission error, improves the transmission efficiency, and further ensures the arc forming precision of the glass.

[0005] In order to achieve the above-mentioned purpose, the first technical scheme of the utility model is as follows: a glass hard shaft bending arc changing mechanism, including a plurality of rotatingly connected arc changing units and connecting rods connecting adjacent arc changing units, the arc changing unit includes a driving arc changing unit provided with an arc changing mechanism, and the driving arc changing unit is provided with a driving arc changing part for driving the arc changing mechanism; further including an arc changing driving unit;

[0006] All the driving arc changing parts are connected through a set of arc changing connecting assemblies, and together with the arc changing connecting assemblies, form an arc changing transmission system; the arc changing driving unit is connected with the arc changing transmission system from a plurality of arc changing power input points distributed along the glass conveying direction, to drive all the arc changing mechanisms to act.

[0007] The beneficial effects are that the arc adjusting driving unit can drive the arc adjusting mechanism in the variable-arc mechanism at multiple points simultaneously in the glass conveying direction.

[0008] As a form of arc adjusting driving unit, the arc adjusting driving unit comprises a transmission assembly and multiple sets of clutch assemblies, the transmission assembly is power connected with the multiple sets of clutch assemblies, the multiple sets of clutch assemblies are arranged dispersedly along the glass conveying direction, and the multiple sets of clutch assemblies are connected with the arc adjusting transmission system.

[0009] Further, the clutch assembly comprises an arc adjusting power input box, a secondary fork shaft, a primary fork shaft, a bearing seat unit, a telescopic universal coupling and a clutch driving piece, one end of the telescopic universal coupling is connected with the output end of the transmission assembly, the other end of the telescopic universal coupling is connected with the primary fork shaft, and the primary fork shaft is arranged in the bearing seat unit; the output end of the arc adjusting power input box is connected with the arc adjusting power input piece, and the input end of the arc adjusting power input box is connected with the secondary fork shaft; the clutch driving piece is connected with the bearing seat unit, drives the bearing seat unit to ascend and descend, and drives the primary fork shaft and the secondary fork shaft to be connected or disconnected.

[0010] Further, the clutch assembly further comprises a sliding rail and a sliding block, the bearing seat unit is fixedly connected with the sliding block, the sliding block is arranged on the sliding rail, the sliding rail is fixed on the rack of the variable-arc mechanism, and the clutch driving piece drives the bearing seat unit and the sliding block to slide up and down along the sliding rail.

[0011] Further, the bearing seat unit comprises a bearing sleeve, an axial bearing, a bearing seat shell and an axial bottom bearing; the axial bearing is sleeved on the primary fork shaft, the bearing sleeve is sleeved on the outer periphery of the axial bearing, and the axial bottom bearing is sleeved on the primary fork shaft and supports the bottom of the bearing sleeve; and the bearing sleeve and the bearing seat shell have a gap therebetween.

[0012] As another form of arc adjusting driving unit, multiple arc adjusting driving units are arranged, the multiple arc adjusting driving units are arranged dispersedly along the glass conveying direction, and the multiple arc adjusting driving units are connected with the arc adjusting transmission system.

[0013] Further, the arc adjusting driving unit comprises an arc adjusting motor, and the arc adjusting motor is a servo motor.

[0014] The utility model discloses still provide another kind of implementation scheme of glass hard shaft bending arc mechanism, and arc mechanism includes multiple rotationally connected arc unit and connecting link of adjacent arc unit, and the active arc unit including setting in arc unit has the arc adjusting mechanism, and the active arc unit is provided with the active arc adjusting piece for driving arc adjusting mechanism;Still include arc adjusting drive unit;

[0015] All active arc adjusting pieces are divided into multiple groups along the glass conveying direction, and multiple active arc adjusting pieces in each group are connected by a set of arc adjusting connecting assembly, and an arc adjusting transmission system is formed with the arc adjusting connecting assembly;Arc adjusting drive unit is connected with multiple arc adjusting transmission systems to drive all arc adjusting mechanisms to act.

[0016] Its beneficial effects are: the utility model discloses by grouping to active arc adjusting piece, so that arc adjusting drive unit can drive the arc adjusting mechanism in arc mechanism in glass conveying direction multiple points simultaneously arc adjusting.Therefore in glass conveying direction, the power transmission route of arc adjusting mechanism in prior art is dispersed multiple points input, and arc adjusting power transmission route is shortened, power transmission error is reduced, transmission efficiency is improved, and the consistency of arc adjusting mechanism in glass conveying direction is guaranteed, and then the final bending forming precision of glass is guaranteed.

[0017] As a kind of arc adjusting drive unit form, the arc adjusting drive unit includes a transmission assembly and multiple sets of clutch assembly, the transmission assembly is connected with multiple sets of clutch assembly power, multiple sets of clutch assembly are connected with multiple arc adjusting transmission systems.

[0018] Further, the clutch assembly includes an arc power input box, a secondary fork shaft, a primary fork shaft, a bearing seat unit, a telescopic universal coupling and a clutch driving piece, one end of the telescopic universal coupling is connected with the output end of the transmission assembly, the other end of the telescopic universal coupling is connected with the primary fork shaft, and the primary fork shaft is arranged in the bearing seat unit;The output end of the arc power input box is connected with the arc power input piece, and the input end of the arc power input box is connected with the secondary fork shaft;The clutch driving piece is connected with the bearing seat unit, and drives the bearing seat unit to ascend and descend and drives the primary fork shaft and the secondary fork shaft to connect or disconnect.

[0019] Further, the clutch assembly further includes a slide rail and a sliding block, the bearing seat unit is fixedly connected with the sliding block, the sliding block is arranged on the slide rail, and the slide rail is fixed on the rack of the arc mechanism, and the clutch driving piece drives the bearing seat unit and the sliding block to slide up and down along the slide rail.

[0020] Further, the bearing seat unit comprises a bearing sleeve, an axial bearing, a bearing seat shell and an axial bottom bearing; the axial bearing sleeve is sleeved on the main fork shaft, the bearing sleeve is sleeved on the outer periphery of the axial bearing, and the axial bottom bearing is sleeved on the main fork shaft and supports the bottom of the bearing sleeve; the bearing sleeve and the bearing seat shell have a gap therebetween.

[0021] As another form of the arc adjusting driving unit, a plurality of arc adjusting driving units are provided, and the plurality of arc adjusting driving units are connected with the plurality of arc adjusting transmission systems.

[0022] Further, the arc adjusting driving unit comprises an arc adjusting motor, and the arc adjusting motor is a servo motor.

[0023] On the basis of the two technical solutions, the utility model discloses a glass hard shaft bending equipment, including two sets of variable arc mechanism, draw mechanism and multiple hard shaft roller way along the glass conveying direction arrangement, two sets of variable arc mechanism are arranged respectively at the both sides of glass conveying direction, and draw mechanism is connected with the both ends of two variable arc mechanisms, and multiple hard shaft roller ways are set up between two variable arc mechanisms and are connected with two variable arc mechanisms, the variable arc mechanism adopts above-mentioned glass hard shaft bending variable arc mechanism.

[0024] Further, a main driving shaft is further arranged between the two variable arc mechanisms, and the power for adjusting the arc is transmitted from one variable arc mechanism to the other variable arc mechanism on the opposite side through the main driving shaft.

[0025] The utility model has the advantages that: the utility model realizes multi-point driving arc adjusting through different structural forms, simultaneously drives the variable arc mechanism to adjust the arc from multiple points in the glass conveying direction, disperses the arc adjusting power to multiple points, reduces the transmission error, improves the transmission efficiency, and further ensures the arc forming precision of the glass.

[0026] The slide rail arranged in the clutch assembly guides the lifting of the main fork shaft, makes the structure of the clutch assembly more stable, and makes the connection and disconnection of the main fork shaft and the auxiliary fork shaft more accurate. The gap between the bearing sleeve and the bearing seat shell can make the bearing sleeve adaptively slide in the bearing seat shell, and can further ensure that the main fork shaft and the auxiliary fork shaft can be accurately and smoothly connected. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a structural schematic view of the variable arc mechanism described in embodiment 1.

[0028] Figure 2 It is a side view of the variable arc mechanism described in embodiment 1 on the hard shaft bending equipment.

[0029] Figure 3 It is a connection and transmission structure schematic view of the arc adjusting connection assembly, taking two arc adjusting power input points as an example in embodiment 1.

[0030] Figure 4 This is a schematic diagram showing the connection between the clutch assembly and the counteracting arc unit in the arc-changing mechanism described in Embodiment 1;

[0031] Figure 5 This is a cross-sectional view of the clutch assembly described in Example 1;

[0032] Figure 6 This is a schematic diagram of the arc-changing mechanism described in Example 2;

[0033] Figure 7 for Figure 6 A magnified view of a portion of the image;

[0034] Figure 8 This is a side view of the variable arc mechanism described in Example 2 on a hard shaft bending device;

[0035] Figure 9 This is a partial view of the arc-changing mechanism described in Example 4;

[0036] Figure 10 This is a schematic diagram of the arc-changing mechanism described in Example 5;

[0037] Figure 11 This is a schematic diagram of the connection and transmission structure of the arc-adjusting connection component, taking two arc-adjusting transmission systems as an example in Example 8.

[0038] Figure 12 This is a schematic diagram of the variable arc mechanism described in Example 9;

[0039] Figure 13 This is a schematic diagram of the arc-changing mechanism described in Example 11;

[0040] The diagram shows the following markings: 1. Arc-changing unit; 101. Bevel gear pair; 102. Lead screw; 103. Arc-adjusting slider; 104. Bushing; 1-1. Active arc-changing unit; 1-2. Passive arc-changing unit; 2. Connecting rod; 3. Clutch assembly; 4. Secondary steering box; 5. Drive shaft; 6. Main steering box; 7. Main drive mechanism; 8. Main drive shaft; 9. Hardened shaft roller conveyor; 10. Arc-adjusting power input sprocket; 11. Arc-adjusting power input. 12. Box, 13. Secondary fork shaft, 14. Main fork shaft, 15. Bearing housing unit, 16. Bearing sleeve, 17. Shaft side bearing, 18. Bearing housing shell, 19. Shaft bottom bearing, 20. Telescopic universal coupling, 21. Central support component, 22. Arc adjusting connection assembly, 23. Active arc adjusting sprocket, 24. Frame, 25. Clutch drive component, 26. Slider, 27. Slide rail, 28. Arc adjusting motor. Detailed Implementation

[0041] The utility model will be further described in detail in combination with the drawings and embodiments, but it is not as a basis for any limit on the utility model.

[0042] The following embodiments 1-7 are the glass hard shaft bending arc changing mechanism of the first structure, which mainly realizes the multi-point input of the arc changing power through the form of setting multiple dispersed arc changing power input points on the arc changing mechanism.

[0043] Embodiment 1: refer to the drawings Figures 1-5 As shown in the drawings, a glass hard shaft bending arc changing mechanism comprises multiple arc changing units 1 connected by rotating shafts and connecting rods 2 connecting every two adjacent arc changing units 1.

[0044] As shown in the drawings, Figure 3 In this embodiment, the multiple arc changing units 1 on the arc changing mechanism are divided into active arc changing units 1-1 and passive arc changing units 1-2, which are arranged alternately along the glass conveying direction. The active arc changing units 1-1 are provided with active arc changing parts, and in this embodiment, the active arc changing parts are active arc changing sprockets 18. The active arc changing units 1-1 are also provided with arc changing mechanisms, and the active arc changing sprockets 18 drive the arc changing mechanisms to change the arc under the power driving. The principle of arc changing is mainly to adjust the range of movement of the connecting rods 2 to adjust the arc radius of the arc changing mechanism. Specifically, as shown in the drawings, Figure 2 The arc changing mechanism mainly comprises bevel gear pairs 101, lead screws 102, arc changing sliders 103 and shaft sleeves 104, the bevel gear pairs 101 and the active arc changing sprockets 18 and the lead screws 102 are connected, the shaft sleeves 104 are threadedly connected on the lead screws 102, the arc changing sliders 103 are axially movably sleeved on the shaft sleeves 104 (for example, the axial movement can be realized by splines), the shaft sleeves 104 have lower steps, the position of the lower steps limits the movement range of the arc changing sliders 103, and the connecting rods 2 are connected with the arc changing sliders 103. When arc changing is needed, external power is input to the active arc changing sprockets 18, the active arc changing sprockets 18 rotate and drive the lead screws 102 to rotate through the bevel gear pairs 101, and then drive the shaft sleeves 104 threadedly connected on the lead screws 102 to move up and down, change the gap between the lower steps of the shaft sleeves 104 and the arc changing sliders 103, so as to adjust the movement range of the connecting rods 2. The above description is only for the purpose of clearly explaining the arc changing action, and the further detailed structure of the arc changing mechanism can have different setting modes, as long as it needs to realize the arc changing action, the technical scheme of the utility model can be used to drive the arc changing mechanism, so the structure of the arc changing mechanism cannot limit the utility model.

[0045] The basic structure of the arc changing unit 1, the setting mode of the connecting rod 2 and the structure and arc changing principle of the arc changing mechanism can also be further referred to the related contents of the patent CN202849242U or the patent CN210030415U.

[0046] As shown in Figure 1 and 3 , all the active arc adjusting sprockets 18 are connected through a set of arc adjusting connecting assemblies 17, and all the active arc adjusting sprockets 18 and the arc adjusting connecting assemblies 17 together constitute an arc adjusting transmission system. In the embodiment, the arc adjusting transmission system takes the cooperation of sprockets and chains as the power transmission mode. The active arc adjusting sprockets 18 are connected with the bevel gear pairs 101 in the arc adjusting mechanism. In the arc adjusting transmission system, four sprockets arranged dispersedly along the glass conveying direction are used to access external arc adjusting power, thereby constituting four arc adjusting power input points (A positions in the middle of the sprockets are used to access external arc adjusting power, and the sprockets serve as arc adjusting power input sprockets. Here, the label A only shows the arc adjusting power input points for the convenience of understanding the scheme of the utility model). Figure 3 The external power is accessed to the arc adjusting transmission system through the four arc adjusting power input points, and is transmitted to all the active arc adjusting sprockets 18, so as to realize the action of all the arc adjusting mechanisms in the arc adjusting mechanism and the arc adjusting of the arc adjusting mechanism. In the embodiment, the arc adjusting power input sprocket used to access external arc adjusting power is arranged on the passive arc adjusting unit 1-2, which is only for the convenience of arrangement. In other embodiments, the arc adjusting power input sprocket used to access external arc adjusting power can be arranged on the active arc adjusting unit 1-1 to constitute four arc adjusting power input points, or the active arc adjusting sprocket 18 on the active arc adjusting unit 1-1 can be directly used as an arc adjusting power input point. It can be understood that, because all the active arc adjusting sprockets 18 in the arc adjusting transmission system and all the sprockets in the arc adjusting connecting assemblies 17 are connected with each other through chains and together constitute the arc adjusting transmission system, any sprocket in the arc adjusting transmission system can be used as an arc adjusting power input point to access external power. In the design, it is only required to ensure that the four arc adjusting power input points are arranged dispersedly along the glass conveying direction.

[0047] In the embodiment, the power of the four arc adjusting power input points comes from a set of arc adjusting driving units. The arc adjusting driving units include transmission assemblies and four sets of clutch assemblies 3, the transmission assemblies and the four sets of clutch assemblies 3 are in transmission connection, and the four sets of clutch assemblies 3 are connected with the four arc adjusting power input sprockets used to access external arc adjusting power one by one to realize one-to-one transmission. It can be understood that, when the number of arc adjusting power input points changes, the number of clutch assemblies 3 needs to be changed accordingly to maintain one-to-one transmission. In the embodiment, four arc adjusting power input points are taken as an example for description, and in other embodiments, two or more than two arc adjusting power input points can be arranged according to actual conditions.

[0048] Specifically, as shown in Figure 4 , 5As shown, the clutch assembly 3 includes an arc adjusting power input box 11, a secondary fork shaft 12, a primary fork shaft 13, a bearing seat unit 14, a telescopic universal coupling 15 and a clutch driving member 20. One end of the telescopic universal coupling 15 is connected with the transmission assembly, and the other end is connected with one end of the primary fork shaft 13. The primary fork shaft 13 is arranged in the bearing seat unit 14, and the other end of the primary fork shaft 13 extends out of the bearing seat unit 14. The output end of the arc adjusting power input box 11 is connected with an arc adjusting power input sprocket 10 for connecting with external arc adjusting power. One end of the secondary fork shaft 12 is arranged on the input end of the arc adjusting power input box 11, and the secondary fork shaft 12 and the primary fork shaft 13 are located on the same axis. The bearing seat unit 14 and the clutch driving member 10 are directly or indirectly connected, and the bearing seat unit 14 is driven by the clutch driving member 20 to ascend and descend, so as to realize the connection or disconnection of the primary fork shaft 13 and the secondary fork shaft 12. Specifically, the primary fork shaft 13 is a shaft body, one end of which is provided with a fork for connecting with the secondary fork shaft 12, and the other end is matched with the hole of the telescopic universal coupling 15 through a key. The secondary fork shaft 12 is a shaft body, one end of which is provided with a fork for matching with the end of the primary fork shaft 13, and the other end is provided with a bevel gear for matching with the gear of the arc adjusting power input box 11. The clutch driving member 20 is a gas cylinder, an electric cylinder, a hydraulic cylinder or other mechanism capable of realizing linear driving.

[0049] Further, in the embodiment, the clutch assembly 3 further includes a sliding block 21 and a sliding rail 22 in sliding connection. The sliding rail 22 is fixed on the frame 19 of the arc changing mechanism. The bearing seat unit 14 and the sliding block 21 are fixedly connected. The sliding block 21 is connected with the clutch driving member 20. The clutch driving member 20 drives the sliding block 21 and the bearing seat unit 14 to slide up and down along the sliding rail 22. The arrangement of the sliding block and the sliding rail can provide guidance for the ascending and descending of the primary fork shaft, and ensure the accurate butt joint of the primary fork shaft and the secondary fork shaft.

[0050] Preferably, the structure of the bearing seat unit 14 includes a bearing sleeve 1401, an axial bearing 1402, a bearing seat shell 1403 and an axial bottom bearing 1404. The axial bearing 1402 is sleeved on the primary fork shaft 13. The bearing sleeve 1401 is sleeved on the axial bearing 1402. The axial bottom bearing 1404 is sleeved on the primary fork shaft 13 and supports the bottom of the bearing sleeve 1401. There is a gap between the bearing sleeve 1401 and the bearing seat shell 1403. The bearing sleeve 1401 can slide left and right along the gap. The axial bottom bearing 1404 reduces the sliding resistance of the bearing sleeve 1401. Since the secondary fork shaft 12 may not be in the same position after each time the arc changing mechanism starts to arc, the gap between the bearing sleeve 1401 and the bearing seat shell 1403 can make the bearing sleeve 1401 adaptively slide in the bearing seat shell 1403, automatically correct the error of the secondary fork shaft 12 in the horizontal direction during the meshing of the primary fork shaft 13 and the secondary fork shaft 12, and make the butt joint of the primary fork shaft 13 and the secondary fork shaft 12 more smooth.

[0051] In the arc changing device, the arc changing mechanism described in the embodiment is arranged in two sets, respectively on both sides of the glass conveying direction. Each arc changing mechanism on the side is provided with four sets of the above-mentioned clutch assembly 3.

[0052] As shown in the figure, the transmission assembly described in the embodiment includes a main steering box 6, four transmission shafts 5 and four auxiliary steering boxes 4. The main steering box 6 is arranged in the middle of the glass conveying direction. The main steering box 6 and the adjacent auxiliary steering box 4 are connected by the transmission shaft 5. The output shaft of each auxiliary steering box 4 is connected with the retractable universal joint 15 in the clutch assembly 3. The main steering box 6 is also connected with the main driving mechanism 7. The main driving mechanism 7 is connected with the main steering box 6 on the same side by the chain transmission. Figure 1 As shown in the figure, in the arc changing device, the main driving mechanism 7 is also connected with the main steering box 6 of the transmission assembly on the other side of the glass conveying direction through the main driving shaft 8 and the chain transmission structure.

[0053] Figure 2 The main driving mechanism 7 adopts a driving motor. In this way, the driving motor can transmit power to the main steering box 6 on both sides of the glass conveying direction through the main driving shaft 8, and then transmit power to each auxiliary steering box 4 through the transmission shaft 5, so as to drive the arc changing transmission system to act, drive all the arc changing mechanisms to act, and realize the arc changing of the arc changing mechanism.

[0054] In other embodiments, the transmission assembly can no longer be provided with the main steering box, but only include four auxiliary steering boxes 4 and three transmission shafts 5. At this time, the driving motor of the main driving mechanism 7 is arranged at the end of the glass conveying direction. The driving motor drives the input shaft of the adjacent auxiliary steering box 4 to rotate from the end of the glass conveying direction, and then realizes the rotation of the output shaft of the other auxiliary steering box 4 through the transmission of each transmission shaft 5. At this time, in the arc changing device, the arc changing driving units on both sides of the glass conveying direction are completely consistent, and the main driving shaft 8 no longer needs to be connected with each other, that is, there is one driving motor on each side of the glass conveying direction; or only one driving motor is arranged and the main driving shaft 8 is retained, and the main driving shaft 8 connects two auxiliary steering boxes 4 on both sides.

[0055] In other embodiments, the transmission assembly can no longer be provided with the main steering box, but only include four auxiliary steering boxes 4 and three transmission shafts 5. At this time, the driving motor of the main driving mechanism 7 is arranged at the end of the glass conveying direction. The driving motor drives the input shaft of the adjacent auxiliary steering box 4 to rotate from the end of the glass conveying direction, and then realizes the rotation of the output shaft of the other auxiliary steering box 4 through the transmission of each transmission shaft 5. At this time, in the arc changing device, the arc changing driving units on both sides of the glass conveying direction are completely consistent, and the main driving shaft 8 no longer needs to be connected with each other, that is, there is one driving motor on each side of the glass conveying direction; or only one driving motor is arranged and the main driving shaft 8 is retained, and the main driving shaft 8 connects two auxiliary steering boxes 4 on both sides.

[0056] ​The variable-arc mechanism is in a flattened state when arc adjustment is needed, the bearing seat unit 14 and the sliding block 21 are driven by the clutch driving part 20 to slide upward, thereby the main fork shaft 13 and the auxiliary fork shaft 12 are connected, the power is transmitted to the arc adjustment power input box 11 through the main driving mechanism 7, the transmission shaft 5, the auxiliary steering box 4, the telescopic universal coupling 15, the main fork shaft 13 and the auxiliary fork shaft 12, and then the power is input to the arc adjustment mechanism in the main driving arc unit 1-1 through the arc adjustment transmission system, and the arc adjustment of all the arc adjustment units 1 in the variable-arc mechanism is completed. The plurality of auxiliary steering boxes 4 are connected through the transmission shaft 5 and are simultaneously driven by the main driving mechanism 7, thereby the plurality of arc adjustment power input points are simultaneously connected with the power, and the arc adjustment is simultaneously driven from the plurality of points. When the arc adjustment is completed and the two ends of the variable-arc mechanism are pulled to lift the arc, the clutch driving part 20 can disconnect the main fork shaft 13 and the auxiliary fork shaft 12, so as to avoid affecting the lifting of the arc of the variable-arc mechanism.

[0057] The arc adjustment driving unit can simultaneously drive all the arc adjustment mechanisms in the variable-arc mechanism from the plurality of arc adjustment power input points in the glass conveying direction. Therefore, the power transmission route of the arc adjustment of the long variable-arc mechanism in the prior art is dispersed into multiple point inputs in the glass conveying direction, the arc adjustment power transmission route is shortened, the power transmission error is reduced, the transmission efficiency is improved, the consistency of the arc adjustment of the variable-arc mechanism in the glass conveying direction is ensured, and then the final bending forming precision of the glass is ensured. The arc adjustment driving unit is arranged in a set, the synchronism of the arc adjustment can be ensured, and the clutch assembly is arranged, so that the arc adjustment power can be connected or disconnected as needed.

[0058] Embodiment 2: The variable-arc mechanism of the embodiment is different from that of embodiment 1 in that, as shown in Figure 6 , 7 The arc adjustment driving unit is arranged in multiple sets, the plurality of arc adjustment driving units are arranged in dispersion along the glass conveying direction, and are connected with the plurality of arc adjustment power input points one by one. In the embodiment, the arc adjustment driving unit comprises an arc adjustment motor 23, and the arc adjustment motor 23 preferably adopts a servo motor. The output shaft of the arc adjustment motor 23 is connected with a sprocket (the sprocket at the A position in the sprocket and Figure 6 and Figure 7 The connection mode can be key connection or coupling connection, and the sprocket can be a driving arc adjustment sprocket 18 or any other sprocket in the arc adjustment transmission system. At this time, the sprocket connected with the arc adjustment motor 23 is an arc adjustment power input point, the plurality of arc adjustment power input points simultaneously connect the power of the plurality of arc adjustment driving units to the arc adjustment transmission system, thereby driving all the arc adjustment mechanisms in the variable-arc mechanism to act. In use, only the plurality of arc adjustment motors 23 need to be started at the same time and have consistent power.

[0059] The beneficial effect of the embodiment is that multi-point driving arc adjustment of the arc changing mechanism can be achieved without the need to set a clutch structure, and the arc adjustment driving unit is lifted simultaneously with the arc changing mechanism.

[0060] The arc changing mechanism is provided with a middle support 16 at the middle position in the glass conveying direction, and the position of the middle support 16 remains fixed when the arc changing mechanism is pulled to change the arc at both ends.

[0061] In the above-mentioned embodiments 1 and 2, a sprocket is used in the arc adjustment transmission system. The difference between the arc changing mechanism of the embodiment and that of the embodiments 1 or 2 is that a gear transmission form is used instead of the sprocket transmission form in the embodiments 1 or 2, that is, a gear is used as the driving arc adjustment part, and a combination of multiple gears is used as the arc adjustment connecting assembly 17, which can also achieve the effect of multi-point driving arc adjustment of the arc changing mechanism.

[0062] In the above-mentioned embodiments 1 and 2, some sprockets in the arc adjustment connecting assembly 17 are used as the arc adjustment power input points. The difference between the embodiment and the above-mentioned embodiments is that multiple driving arc adjustment sprockets 18 arranged in the arc adjustment transmission system are directly used as the arc adjustment power input points and are connected with the arc adjustment driving unit. The arc adjustment driving unit can be the arc adjustment driving unit in the embodiment 1 or 2. As shown in Figure 9 When the arc adjustment driving unit in the embodiment 2 is used, the arc adjustment motor 23 directly drives the driving arc adjustment sprocket 18 connected therewith to rotate.

[0063] In the embodiment 1, the arc changing mechanism is formed by the driving arc changing unit 1-1 and the passive arc changing unit 1-2 connected alternately in rotation, the adjacent arc changing units are connected through two intersecting connecting rods 2, and the driving arc adjustment sprocket 18 is arranged on the driving arc changing unit 1-1. As shown in Figure 10 The difference between the embodiment and the embodiment 1 is that the passive arc changing unit 1-2 is no longer arranged in the arc changing mechanism, and the driving arc changing unit 1-1 provided with the driving arc adjustment sprocket 18 is used instead. The adjacent driving arc changing units 1-1 are connected through one connecting rod 2, and the specific structure can be referred to the specific embodiment content of the patent CN210030415U. In the embodiment, the sprocket arranged at the position A of the two driving arc changing units 1-1 arranged in the glass conveying direction is used to connect the external power, that is, Figure 10 the sprocket at the position A is connected with the arc adjustment driving unit as the two arc adjustment power input points, the power of the arc adjustment driving unit is transmitted to all the driving arc adjustment sprockets 18 through the arc adjustment transmission system, the movement of all the arc changing mechanisms is realized, and the arc adjustment of the arc changing mechanism is realized.

[0064] In the embodiment 6, the arc changing mechanism is formed by alternately connecting the active arc changing units 1-1 and the passive arc changing units 1-2 in rotation, and the adjacent arc changing units are connected by two intersecting connecting rods 2. The active arc changing mechanism 18 is arranged on the active arc changing unit 1-1. The difference between the embodiment 6 and the embodiment 1 is that the arc changing mechanism is formed by alternately connecting the active arc changing units 1-1 and the passive arc changing units 1-2 in rotation, and the adjacent arc changing units are connected by one connecting rod 2.

[0065] In the embodiment 7, the middle arc changing unit and the two adjacent arc changing units are connected by the connecting rods in the embodiment 1. The difference between the embodiment 7 and the embodiment 1 is that the middle arc changing unit and the two adjacent arc changing units are not connected by the connecting rods.

[0066] The embodiments 8-13 below are the second structure of the glass hard axis bending arc changing mechanism, which mainly realizes the multi-point input of the arc changing driving force by the grouping of the active arc changing sprockets.

[0067] In the embodiment 8, the glass hard axis bending arc changing mechanism is improved based on the embodiment 1 to realize the multi-point input of the arc changing driving force. The improvement mainly relates to the following structure arrangement: all the active arc changing sprockets 18 along the glass conveying direction are divided into multiple groups, the multiple active arc changing sprockets 18 in each group are connected by a set of arc changing connecting assembly 17, and the multiple active arc changing sprockets 18 and the arc changing connecting assembly 17 in each group jointly constitute an arc changing transmission system. Therefore, the arc changing mechanism includes multiple arc changing transmission systems, the number of the arc changing transmission systems is the same as the number of the groups of the active arc changing sprockets 18, the multiple arc changing transmission systems are sequentially arranged along the glass conveying direction, and the adjacent two arc changing transmission systems are not connected with each other in transmission. As shown in FIG. 8, the sprocket on the left side and the sprocket on the right side at the position B are not connected by the chain, that is, the multiple active arc changing sprockets 18 on the left side of the position B form a group, and form an arc changing transmission system with the corresponding arc changing connecting assembly 17. The multiple active arc changing sprockets 18 on the right side of the position B form another group, and form another arc changing transmission system with the corresponding arc changing connecting assembly 17. Figure 11

[0068] In the embodiment, the number of the arc changing transmission systems in the arc changing mechanism is four, that is, all the active arc changing sprockets 18 are divided into four groups. The four arc changing transmission systems are driven by a set of arc changing driving unit. The arc changing driving unit includes a transmission assembly and four sets of clutch assemblies 3, the transmission assembly and the four sets of clutch assemblies 3 are connected in transmission, the four sets of clutch assemblies 3 are respectively connected with the four arc changing transmission systems to realize one-to-one transmission. The clutch assembly 3 can be connected with any sprocket in the arc changing transmission system, for example, the clutch assembly 3 can be connected with any active arc changing sprocket 18 in the group; or the clutch assembly 3 can be connected with any sprocket in the arc changing connecting assembly 17.

[0069] ​The embodiment takes four arc adjusting transmission systems and four sets of clutch assemblies 3 as an example for illustration. In other embodiments, the number of sets of clutch assemblies 3 and the number of arc adjusting transmission systems do not have to be one-to-one correspondence. The number of clutch assemblies 3 can be greater than the number of arc adjusting transmission systems, as long as each arc adjusting transmission system is connected with a clutch assembly 3. For example, the arc adjusting transmission system is two, and the clutch assembly 3 is four sets. Each arc adjusting transmission system is connected with two sets of clutch assemblies 3. Or the arc adjusting transmission system is three, and the clutch assembly 3 is four sets. Two arc adjusting transmission systems are connected with two sets of clutch assemblies 3 respectively, and the remaining one arc adjusting transmission system is connected with two sets of clutch assemblies 3.

[0070] The structure and connection relationship of the clutch assembly 3 and the transmission assembly in the embodiment are the same as those in embodiment 1, and will not be repeated.

[0071] When the arc adjusting mechanism needs to be adjusted, the arc adjusting mechanism is in a flat state, the bearing seat unit 14 and the sliding block 21 are driven by the clutch driving part 20 to slide upward, thereby the main fork shaft 13 and the auxiliary fork shaft 12 are connected, the power is transmitted to the arc adjusting power input box 11 through the main drive mechanism 7, the arc adjusting transmission system, the arc adjusting mechanism in the main arc adjusting unit 1-1, and all the arc adjusting units 1 in the arc adjusting mechanism are completed. A plurality of auxiliary steering boxes 4 are connected through a transmission shaft 5 and driven by a main drive mechanism 7 at the same time, thereby a plurality of arc adjusting transmission systems are connected to the power at the same time, and the arc adjusting is driven from multiple points. When the arc adjusting is completed, the two ends of the arc adjusting mechanism are pulled to rise, and the clutch driving part 20 can drive the main fork shaft 13 and the auxiliary fork shaft 12 to disconnect, so as not to affect the rising of the arc adjusting mechanism.

[0072] The beneficial effect of the embodiment is that the main arc adjusting part of the arc adjusting unit is divided into multiple groups along the glass conveying direction, and multiple groups of main arc adjusting parts are driven to act at the same time, so as to drive the arc adjusting mechanism to adjust the arc. Therefore, in the glass conveying direction, the power transmission route of the long arc adjusting mechanism in the prior art is dispersed into multiple arc adjusting transmission systems, the arc adjusting power transmission route is shortened, the transmission error is reduced, the transmission efficiency is improved, the consistency of the arc adjusting mechanism in the glass conveying direction is ensured, and the final bending forming precision of the glass is ensured. The arc adjusting driving unit is provided in one set, which can ensure the synchronization of the arc adjusting, and the clutch assembly is provided to facilitate the connection or disconnection of the arc adjusting power as needed.

[0073] Embodiment 9: The arc adjusting mechanism of the embodiment is different from that of embodiment 8 in that: Figure 12As shown, multiple arc-adjusting drive units are configured, and these multiple arc-adjusting drive units are connected to multiple arc-adjusting transmission systems. In this embodiment, four arc-adjusting drive units are configured, and each of the four arc-adjusting drive units is connected to one of the four arc-adjusting transmission systems (point B is the separation position where the transmission is disconnected). Each arc-adjusting drive unit includes an arc-adjusting motor 23, which is preferably a servo motor. The output shaft of the arc-adjusting motor 23 is connected to any one or two sprockets in the arc-adjusting transmission system. The connection method can be a key connection or a coupling connection, etc. The sprocket connected to the arc-adjusting motor 23 can be the active arc-adjusting sprocket 18, or any other sprocket in the arc-adjusting connection assembly 17. At this time, multiple arc-adjusting motors 23 start simultaneously with the same power, and simultaneously input power into multiple arc-adjusting transmission systems, driving all active arc-adjusting sprockets 18 to rotate synchronously, thereby driving all arc-adjusting mechanisms in the arc-changing mechanism to operate.

[0074] In other embodiments, the number of arc-adjusting motors 23 and the number of arc-adjusting transmission systems do not necessarily have to be the same. The number of arc-adjusting motors 23 can be greater than the number of arc-adjusting transmission systems, as long as each arc-adjusting transmission system is connected to an arc-adjusting motor 23. For example, there are two arc-adjusting transmission systems and four arc-adjusting motors 23, with each arc-adjusting transmission system connected to two arc-adjusting motors 23. Alternatively, there are three arc-adjusting transmission systems and four arc-adjusting motors 23, with two arc-adjusting transmission systems connected to two arc-adjusting motors 23 respectively, and the remaining arc-adjusting transmission system connected to the two arc-adjusting motors 23.

[0075] The beneficial effect of this embodiment is that it can also realize multi-point drive arc adjustment of the arc-changing mechanism, while eliminating the need for a clutch structure. The arc-adjusting drive unit rises and falls simultaneously with the arc-starting and flattening of the arc-changing mechanism.

[0076] Example 10: In Examples 8 and 9 above, the arc-adjusting transmission system uses a chain drive of sprockets and chains. The difference between the arc-changing mechanism in this example and that in Example 1 or Example 2 is that this example uses a gear drive instead of the chain drive in Example 1 or 2. That is, a gear is used as the active arc-adjusting component, and a combination of multiple gears is used as the arc-adjusting connection assembly 17, which can also play the role of multi-point driving arc adjustment of the arc-changing mechanism.

[0077] In other embodiments, a portion of the arc-adjusting transmission system may use gear transmission, while the other portion may use sprocket and chain transmission.

[0078] Example 11: In Example 8, the arc-changing mechanism is formed by the alternating rotation of an active arc-changing unit 1-1 and a passive arc-changing unit 1-2. Adjacent arc-changing units are connected by two intersecting connecting rods 2, and the active arc-adjusting sprocket 18 is mounted on the active arc-changing unit 1-1. Figure 13As shown, unlike embodiment 8, all the active arc changing units 1-1 in the arc changing mechanism of the present embodiment are provided with active arc changing sprocket 18, and adjacent active arc changing units 1-1 are connected by a connecting rod 2. The specific structure can refer to the specific embodiment content of patent CN210030415U. In the present embodiment, the two active arc changing units 1-1 dispersed along the glass conveying direction in the arc changing mechanism are provided with sprockets for connecting external power, and the action of all the arc changing mechanisms is realized through the arc changing transmission system, thereby realizing the arc changing of the arc changing mechanism. Figure 13 As shown, the left side of the B position is an arc changing transmission system, and the right side of the B position is another arc changing transmission system.

[0079] Embodiment 12: In embodiment 8, the arc changing mechanism is alternately connected by rotation of active arc changing units 1-1 and passive arc changing units 1-2, and adjacent arc changing units are connected by two intersecting connecting rods 2. The active arc changing sprocket 18 is arranged on the active arc changing unit 1-1. The difference between the present embodiment and embodiment 8 is that the arc changing mechanism is alternately connected by rotation of active arc changing units 1-1 and passive arc changing units 1-2, and adjacent arc changing units are connected by one intersecting connecting rod 2.

[0080] Embodiment 13: In embodiment 8, the middle arc changing unit along the glass conveying direction and the two adjacent arc changing units are connected by connecting rods. The difference between the present embodiment and embodiment 8 is that no connecting rod is arranged between the middle arc changing unit along the glass conveying direction and the two adjacent arc changing units.

[0081] Embodiment 14: A glass hard shaft bending device, comprising two sets of arc changing mechanisms, a pulling mechanism and a plurality of hard shaft roller beds 9. The two sets of arc changing mechanisms are arranged on the two sides in the glass conveying direction, and the arc changing mechanism adopts any one of the arc changing mechanisms described in embodiments 1-7 or 8-13. The pulling mechanism adopts the form of chain pulling driven by an arc forming motor, and is connected with the two ends of the two arc changing mechanisms to drive the whole arc changing mechanism to rise by pulling. The plurality of hard shaft roller beds 9 are arranged between the two arc changing mechanisms and connected with the two arc changing mechanisms.

[0082] In another embodiment, when the arc changing mechanism adopts the arc changing mechanism as described in embodiment 1, as shown, Figure 2 a main drive shaft 8 is arranged between the two arc changing mechanisms, and the two arc changing drive units of the two arc changing mechanisms share a main drive mechanism 7. The power of the main drive mechanism 7 is transmitted from the main steering box of one arc changing mechanism to the main steering box of the opposite arc changing mechanism through the main drive shaft 8.

[0083] In another embodiment, when the arc changing mechanism adopts the arc changing mechanism as described in embodiment 2, as shown, Figure 8As shown, a plurality of main drive shafts 8 are arranged between the two arc changing mechanisms, and the number of main drive shafts 8 corresponds to the number of arc adjusting motors 23. The power of the arc adjusting motor 23 is transmitted to the arc changing mechanism on the opposite side through the main drive shaft 8.

[0084] In another embodiment, when the arc changing mechanism adopts the arc changing mechanism as described in Embodiment 4, the main drive shaft 8 is no longer arranged between the arc changing mechanisms on both sides of the glass conveying direction.

[0085] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit it. Those skilled in the art should understand that the specific embodiments of the present application can be modified or replaced by equivalents according to the above embodiments, and any modification or equivalent replacement that does not deviate from the spirit and scope of the present application is within the protection scope of the claims.

Claims

1. A glass hard shaft bending and arc changing mechanism, comprising a plurality of rotationally connected arc changing units (1) and connecting rods (2) connecting adjacent arc changing units (1), wherein the arc changing units (1) comprise a driving arc changing unit (1-1) provided with an arc changing mechanism, the driving arc changing unit (1-1) is provided with a driving arc changing member for driving the arc changing mechanism; and further comprising an arc changing driving unit; characterized in that all the driving arc changing members are connected through a set of arc changing connecting assemblies (17) and together with the arc changing connecting assemblies (17) form an arc changing transmission system; the arc changing driving unit is connected with the arc changing transmission system from a plurality of arc changing power input points distributed along the glass conveying direction to drive all the arc changing mechanisms to act.

2. The glass hard-bending arc-bending mechanism according to claim 1, characterized in that, The arc changing driving unit comprises a transmission assembly and a plurality of clutch assemblies (3), the transmission assembly is power connected with the plurality of clutch assemblies (3), the plurality of clutch assemblies (3) are distributed along the glass conveying direction, and the plurality of clutch assemblies (3) are connected with the arc changing transmission system.

3. The glass hard-bending arc-bending mechanism according to claim 2, characterized in that, The clutch assembly (3) comprises an arc changing power input box (11), a secondary fork shaft (12), a primary fork shaft (13), a bearing seat unit (14), a telescopic universal coupling (15) and a clutch driving member (20), one end of the telescopic universal coupling (15) is connected with the output end of the transmission assembly, the other end of the telescopic universal coupling (15) is connected with the primary fork shaft (13), the primary fork shaft (13) is arranged in the bearing seat unit (14); the output end of the arc changing power input box (11) is connected with the arc changing transmission system, the input end of the arc changing power input box (11) is connected with the secondary fork shaft (12); the clutch driving member (20) is connected with the bearing seat unit (14) to drive the bearing seat unit (14) to ascend and descend and drive the primary fork shaft (13) to connect or disconnect with the secondary fork shaft (12).

4. The glass hard-bending arc mechanism of claim 3, wherein, The clutch assembly (3) further comprises a slide rail (22) and a sliding block (21), the bearing seat unit (14) is fixedly connected with the sliding block (21), the sliding block (21) is arranged on the slide rail (22), the slide rail (22) is fixed on a rack (19) of the arc changing mechanism, and the clutch driving member (20) drives the bearing seat unit (14) and the sliding block (21) to slide up and down along the slide rail (22).

5. The glass hard-bending arc mechanism of claim 4, wherein, The bearing seat unit (14) comprises a bearing sleeve (1401), an axial bearing (1402), a bearing seat shell (1403) and an axial bottom bearing (1404), the axial bearing (1402) is sleeved on the primary fork shaft (13), the bearing sleeve (1401) is sleeved on the outer periphery of the axial bearing (1402), the axial bottom bearing (1404) is sleeved on the primary fork shaft (13) and supports the bottom of the bearing sleeve (1401), and a gap is formed between the bearing sleeve (1401) and the bearing seat shell (1403).

6. The glass hard-bending arc mechanism of claim 1, wherein, A plurality of arc changing driving units are provided, the plurality of arc changing driving units are distributed along the glass conveying direction, and the plurality of arc changing driving units are connected with the arc changing transmission system.

7. The glass hard-bending arc mechanism of claim 6, wherein: The arc adjusting driving unit comprises an arc adjusting motor (23), which is a servo motor.

8. A glass hard shaft bending and arc adjusting mechanism, comprising a plurality of rotationally connected arc adjusting units (1) and connecting rods (2) connecting adjacent arc adjusting units (1), wherein the arc adjusting units (1) comprise a driving arc adjusting unit (1-1) provided with an arc adjusting mechanism, the driving arc adjusting unit (1-1) is provided with a driving arc adjusting member for driving the arc adjusting mechanism; and further comprising an arc adjusting driving unit. characterized in that All the driving arc adjusting members are divided into a plurality of groups along the glass conveying direction, and a plurality of driving arc adjusting members in each group are connected through a set of arc adjusting connecting assembly (17) and jointly constitute an arc adjusting transmission system with the arc adjusting connecting assembly (17). The arc adjusting driving unit is connected with a plurality of arc adjusting transmission systems to drive all the arc adjusting mechanisms to act.

9. The glass hard-bending arc mechanism of claim 8, wherein, The arc adjusting driving unit comprises a transmission assembly and a plurality of clutch assemblies (3), the transmission assembly is power connected with the plurality of clutch assemblies (3), the plurality of clutch assemblies (3) are dispersedly arranged along the glass conveying direction, and the plurality of clutch assemblies (3) are connected with the plurality of arc adjusting transmission systems.

10. The glass hard-bending arc mechanism of claim 9, wherein, The clutch assembly (3) comprises an arc adjusting power input box (11), a secondary fork shaft (12), a primary fork shaft (13), a bearing seat unit (14), a telescopic universal coupling (15) and a clutch driving member (20), one end of the telescopic universal coupling (15) is connected with an output end of the transmission assembly, the other end of the telescopic universal coupling (15) is connected with the primary fork shaft (13), and the primary fork shaft (13) is arranged in the bearing seat unit (14); an output end of the arc adjusting power input box (11) is connected with an arc adjusting transmission system, an input end of the arc adjusting power input box (11) is connected with the secondary fork shaft (12); and the clutch driving member (20) is connected with the bearing seat unit (14) to drive the bearing seat unit (14) to ascend and descend and drive the primary fork shaft (13) to be connected with or disconnected from the secondary fork shaft (12).

11. The glass hard-bending arc mechanism of claim 10, wherein, The clutch assembly (3) further comprises a sliding rail (22) and a sliding block (21), the bearing seat unit (14) is fixedly connected with the sliding block (21), the sliding block (21) is arranged on the sliding rail (22), the sliding rail (22) is fixed on a rack (19) of the arc adjusting mechanism, and the clutch driving member (20) drives the bearing seat unit (14) and the sliding block (21) to slide up and down along the sliding rail (22).

12. The glass hard-bending arc mechanism of claim 11, wherein, The bearing seat unit (14) comprises a bearing sleeve (1401), an axial bearing (1402), a bearing seat shell (1403) and an axial bottom bearing (1404), the axial bearing (1402) is sleeved on the primary fork shaft (13), the bearing sleeve (1401) is sleeved on the outer periphery of the axial bearing (1402), the axial bottom bearing (1404) is sleeved on the primary fork shaft (13) and supports the bottom of the bearing sleeve (1401), and a gap is formed between the bearing sleeve (1401) and the bearing seat shell (1403).

13. The glass hard-bending arc mechanism of claim 8, wherein, A plurality of arc adjusting driving units are arranged, and the plurality of arc adjusting driving units are connected with the plurality of arc adjusting transmission systems.

14. The glass hard-bending arc mechanism of claim 13, wherein: The arc adjusting driving unit comprises an arc adjusting motor (23), which is a servo motor.

15. A glass hard bending device, comprising two sets of arc changing mechanisms, a pulling mechanism and a plurality of hard shaft roller ways (9) arranged along the glass conveying direction; the two sets of arc changing mechanisms are respectively arranged on the two sides of the glass conveying direction, the pulling mechanism is connected with the two ends of the two arc changing mechanisms, and the plurality of hard shaft roller ways (9) are arranged between the two arc changing mechanisms and connected with the two arc changing mechanisms; characterized in that: The arc changing mechanism adopts the glass hard shaft arc changing mechanism according to any one of claims 1-14.

16. The glass hard angle bending apparatus of claim 15, wherein: The two arc changing mechanisms are further provided with a main driving shaft (8), and the power for arc adjusting is transmitted from one arc changing mechanism to the other arc changing mechanism on the opposite side through the main driving shaft (8).

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