Pressing mechanism for curved glass forming, transmission device, forming section and production equipment

Abstract

The utility model relates to a pressing mechanism for curved glass forming, a transmission device, a forming section and production equipment, the pressing mechanism comprises a pressing frame and a pressing head, the pressing frame is provided with two roller way mounting holes, each roller way mounting hole is connected with the transmission end of one forming roller way, and at least one roller way mounting hole is a kidney-shaped hole; the pressing head is arranged on one side of the pressing frame, and the pressing head and the two roller way mounting holes form a triangular structure; the transmission device adopts the pressing mechanism on the basis of the driving motor and the transmission mechanism; the forming section comprises an arc plate and a plurality of forming roller ways, and the transmission ends of the forming roller ways are connected with the transmission device; the production equipment comprises an upper sheet table, a heating section, a forming section and a lower sheet table. On the basis of the structure of the pressing mechanism, the transmission device, the forming section and production equipment are optimized, and the requirements for flexibility and reliability of the transmission device in the curved glass forming process are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to glass toughening equipment technical field, specifically related to a kind of curved surface glass forming is used to compact mechanism, transmission device, forming section and production equipment. BACKGROUND

[0002] In the curved surface glass processing process, the hot glass exported from heating furnace is transported to forming roller bed, and the hot glass is formed while being transported, the conveying surface of forming roller bed is matched with the curved surface of glass to be formed, when the curvature of curved surface glass changes, the conveying surface of forming roller bed needs to be adjusted, when forming roller bed is converted between arc state and flat state, the center distance of adjacent forming roller bed changes, in addition, to avoid straight edge generated in curved surface glass forming, roller bed distance is as small as possible, above-mentioned situation requires transmission device to drive forming roller bed, especially when the arc of conveying surface changes frequently, transmission device can change with the change of the arc of conveying surface, the prior art is difficult to meet the demand of flexibility and reliability of transmission device of curved surface glass forming equipment. SUMMARY

[0003] The utility model aims at providing a kind of curved surface glass forming is used to compact mechanism, transmission device, forming section and production equipment to overcome the above technical problems.

[0004] To achieve the above object, the first technical scheme of the utility model is as follows: a kind of curved surface glass forming is used to compact mechanism, including compact frame and compact head, compact frame is equipped with two roller bed installation holes, each roller bed installation hole is connected with the transmission end of a forming roller, at least one roller bed installation hole is waist type hole;The compact head is arranged at the side of compact frame, for pressing on the chain or synchronous belt of forming roller transmission end, the compact head and two roller bed installation holes form triangular structure, so that the position of the compact head pressed on the chain or synchronous belt is located between adjacent two forming rollers.

[0005] Its beneficial effects are: compact mechanism adopts the design of waist type hole, so that forming roller moves in waist type hole relative to another forming roller, so as to realize that compact mechanism adjusts with the adjustment of distance between forming roller;Compact head and two roller bed installation holes form triangular structure, so that compact head is pressed on the chain or synchronous belt between two forming rollers, which can ensure the engagement between chain and sprocket or synchronous belt and synchronous pulley, and does not affect the rotation of sprocket and synchronous pulley.

[0006] Further, the compact head includes pin shaft and rolling body rotatably installed on the pin shaft.

[0007] Its beneficial effects are: the rolling body can relatively roll with chain or synchronous belt, and reduce friction.

[0008] Further, the first bearing is arranged in the roller installation hole, and the forming roller is connected in the roller installation hole through the first bearing.

[0009] The first bearing is arranged to facilitate rotation of the forming roller and reduce friction.

[0010] The second technical scheme of the utility model provides a transmission device for forming curved glass, which comprises a driving motor and a transmission mechanism, the transmission mechanism is a chain transmission mechanism or a synchronous belt transmission mechanism, the transmission mechanism is arranged at a transmission end of a forming roller, and further comprises the pressing mechanism in the first technical scheme.

[0011] The transmission device can change with the forming roller when the position of the forming roller is adjusted, the pressing head ensures that the chain or the synchronous belt is always engaged with the sprocket or the synchronous pulley, and therefore the reliability of transmission is ensured.

[0012] Further, the pressing head comprises a pin shaft and a rolling body, the pressing frames are arranged in an overlapping mode along the arrangement direction of the plurality of forming rollers, the pin shaft of the pressing frame located at the outer side is provided with a spacer sleeve, the spacer sleeve is located between the pressing frame and the rolling body, and the thickness of the spacer sleeve is consistent with the thickness of the pressing frame.

[0013] The spacer sleeve ensures that the distance between the pressing head on each pressing frame and the corresponding chain or synchronous belt in the vertical direction of the glass conveying direction is consistent.

[0014] Further, in the plurality of pressing mechanisms, the roller installation hole further comprises a round hole, and the round hole and the waist-shaped hole are arranged in an alternating mode along the arrangement direction of the forming roller.

[0015] The adjacent two forming rollers can always move in the waist-shaped hole, and therefore the pressing frame can be adjusted according to the distance between the forming rollers.

[0016] The third technical scheme of the utility model provides a forming section for forming curved glass, which comprises an arc plate and a plurality of forming rollers, the two ends of the forming roller are connected to two oppositely arranged arc plates, the forming roller is divided into an upper forming roller and a lower forming roller according to the setting position, a forming channel for glass passing is formed between the upper forming roller and the lower forming roller, the transmission device in the second technical scheme is further comprised, the transmission mechanism and the pressing mechanism are arranged on the outer side of the arc plate, the transmission device is divided into an upper transmission device and a lower transmission device, and the upper transmission device and the lower transmission device drive the upper forming roller and the lower forming roller to rotate, respectively, and the pressing mechanism comprises an upper pressing mechanism and a lower pressing mechanism.

[0017] The beneficial effect is that the forming section adopts the above transmission device to drive the forming roller to rotate, and in the process of adjusting the distance of the forming roller, the movement space of the forming roller is provided by the pressing frame, which reflects the flexibility of the transmission device, and the pressing head ensures that the chain or synchronous belt is always engaged with the sprocket or synchronous pulley, thereby maintaining the reliability of the transmission device.

[0018] Further, the pressing head of the upper pressing mechanism is located above the chain or synchronous belt in the upper transmission device, and the bottom of the pressing head is lower than the top of the sprocket or synchronous pulley in the upper transmission device, and the pressing head of the lower pressing mechanism is located below the chain or synchronous belt in the lower transmission device, and the top of the pressing head is higher than the bottom of the sprocket or synchronous pulley in the lower transmission device.

[0019] The beneficial effect is that the chain or synchronous belt can always be engaged with the sprocket or synchronous pulley, avoiding the chain or synchronous belt from jumping due to vibration, and ensuring the reliability of the transmission.

[0020] Further, the height difference between the bottom of the pressing head of the upper pressing mechanism and the top of the sprocket or synchronous pulley is less than 5mm, and the height difference between the top of the pressing head of the lower pressing mechanism and the bottom of the sprocket or synchronous pulley is less than 5mm.

[0021] The beneficial effect is that a suitable height difference is given to further ensure that the chain can always be engaged on the sprocket, or the synchronous belt can always be engaged on the synchronous pulley.

[0022] Further, the upper transmission device and the lower transmission device are located on different sides of the forming section.

[0023] The beneficial effect is that the transmission device adopts different side settings to avoid mutual interference between the upper transmission device and the lower transmission device.

[0024] Further, the forming roller is a straight line type roller, both ends of the forming roller are rotatably sleeved in a thin wall sleeve, and the thin wall sleeve is clamped with the arc plate through the arc plate, the thin wall sleeve is provided with a clamping groove clamped with the arc plate, and the thin wall sleeve and the arc plate are circularly positioned through the positioning structure.

[0025] The beneficial effect is that the straight line type roller does not need to design bearing installation steps at both ends of the roller, which can maximize the retention of the forming roller precision and strength, reduce the jumping amount of the forming roller in operation, and improve the forming precision; since the thin wall sleeve is clamped with the arc plate in the scheme, the spacing of the straight line type roller is smaller, and the straight edge length of the finished curved surface glass is maximized.

[0026] Further, the two arc plates arranged oppositely are fixedly connected into a whole through a fixed shaft.

[0027] Its beneficial effect is: two arc plates of relative arrangement are connected into a whole, and two arc plates can move integrally when the forming section is adjusted.

[0028] The utility model further provides a fourth technical scheme: a curved surface glass production equipment, including the upper piece platform, heating section, forming section and lower piece platform according to the process sequence, the glass to be processed is sequentially through the upper piece, heating, forming and lower piece, and processing is completed, and the forming section uses the forming section in the third technical scheme.

[0029] Its beneficial effect is: improve the flexibility and reliability of curved surface glass production equipment in the forming process.

[0030] The utility model discloses the pressing frame of pressing mechanism can make that the forming roller bed moves in the waist type hole, thereby realizing the adjustment of pressing mechanism with the distance between forming roller bed adjustment, and in the adjustment process, by the pressing head of pressing mechanism, guaranteeing that chain or synchronous belt is always engaged with sprocket or synchronous pulley, and the reliable power transmission of before and after adjustment is ensured.The transmission device, forming section and production equipment proposed are further optimized on the basis, thereby meeting the demand of flexibility and reliability of transmission device in the curved surface glass forming process. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0032] Figure 1 It is the structure schematic view of the pressing mechanism described in embodiment 1;

[0033] Figure 2 It is the structure schematic view of the pressing frame of the pressing mechanism described in embodiment 1;

[0034] Figure 3 It is the assembly schematic view of the transmission device on the forming roller bed described in embodiment 2;

[0035] Figure 4 It is the local view of the transmission end of the forming roller bed described in embodiment 2;

[0036] Figure 5 It is the schematic view of the overlapping arrangement of the pressing frame of adjacent pressing mechanisms in embodiment 2;

[0037] Figure 6 It is the local view of the position relationship between the rolling body and sprocket in the transmission device described in embodiment 2;

[0038] Figure 7 Assembly detail view of the transmission device described in embodiment 3 on the forming roller bed;

[0039] Figure 8 Structure schematic view of the forming section described in embodiment 4;

[0040] Figure 9 Structure schematic view of the thin-wall sleeve described in embodiment 4;

[0041] Marked in the figure: 1, pressing frame, 101, waist-shaped hole, 102, round hole, 103, pin shaft hole, 2, pressing head, 201, pin shaft, 202, rolling body, 3, shaft sleeve, 4, first bearing, 5, forming roller bed, 501, upper forming roller bed, 502, lower forming roller bed, 6, thin-wall sleeve, 601, clamping groove, 602, positioning groove, 7, chain wheel, 8, spacer sleeve, 9, synchronous pulley, 10, arc plate, 1001, upper arc plate, 1002, lower arc plate, 11, lower transmission device, 12, lower pressing mechanism, 13, fixed shaft. DETAILED DESCRIPTION

[0042] The utility model will be further explained in detail in combination with the drawings and embodiments, but it is not as the basis for any limit of the utility model.

[0043] Embodiment 1

[0044] A pressing mechanism for curved glass forming is used to press on the chain or synchronous belt of the transmission end of the forming roller bed, when the chain or synchronous belt is in work and vibrates, the pressing mechanism can limit the jumping of the chain or synchronous belt, ensure that the chain and chain wheel and the synchronous belt and synchronous pulley are always engaged. When the forming roller bed needs to be adjusted in position because of the adjustment of the curvature, the pressing mechanism can also be changed with the arrangement shape of the forming roller bed, to ensure the reliable transmission of the chain or synchronous belt.

[0045] The structure of the pressing mechanism is as follows Figure 1 、 2As shown, it comprises a pressing frame 1 and a pressing head 2 mounted on the pressing frame 1, two roller mounting holes are arranged on the pressing frame 1, and shaft sleeves 3 are arranged in the roller mounting holes, the forming rollers in the curved glass forming equipment are one-to-one mounted in the shaft sleeves 3 of the roller mounting holes and can rotate in the shaft sleeves 3, and therefore the first bearings 4 are also mounted in the shaft sleeves 3 and assembled with the corresponding forming rollers to reduce the friction of the forming rollers. The pressing head 2 comprises a pin shaft 201 and a rolling body 202, the pin shaft 201 is fixedly arranged in a pin shaft hole 103 on the pressing frame 1, and the pin shaft 201 is perpendicular to the side surface of the pressing frame 1, and the rolling body 202 is rotatably mounted on the pin shaft 201. In the embodiment, the rolling body 202 adopts a second bearing, and in other embodiments, a roller can also be used as the rolling body 202. The pressing mechanism is pressed on the chain or synchronous belt through the rolling body 202 of the pressing head 2, the rolling body 202 can rotate freely with the chain or synchronous belt, and the friction between the pressing head 2 and the chain or synchronous belt is reduced.

[0046] Preferably, the pressing head 2 is located between the two roller mounting holes and forms a triangular layout with the two roller mounting holes, so that the position of the rolling body 202 pressed on the chain or synchronous belt is located between the adjacent two forming rollers. In addition, the pressing head can also form a straight line layout with the two roller mounting holes in other embodiments.

[0047] In order to realize the movement of the pressing mechanism with the position of the forming roller, at least one of the two roller mounting holes on the pressing frame 1 is a waist-shaped hole 101, and in the embodiment, one of the two roller mounting holes is a waist-shaped hole 101 and the other is a round hole 102, and the center distance D of the waist-shaped hole 101 refers to the center distance of the two semicircular arcs at the ends of the waist-shaped hole 101.

[0048] Embodiment 2

[0049] As shown in Figure 3 A transmission device for curved glass forming, which provides power for the forming rollers of the forming section in the curved glass production equipment, the transmission device comprises a driving motor and a transmission mechanism, the driving motor is arranged in the forming section, the transmission mechanism is a chain transmission mechanism, and the sprocket 7 of the chain transmission mechanism is arranged at the transmission end of the forming roller 5, the transmission end of the forming roller 5 is also provided with the pressing mechanism described in embodiment 1, the driving motor drives each forming roller to rotate synchronously through the chain, and the pressing mechanism can ensure that the chain is always meshed with the sprocket.

[0050] As shown in Figure 4 , 5 The pressing frame 1 of each pressing mechanism is connected with the adjacent two forming rollers 5, and a plurality of pressing mechanisms are also arranged in the arrangement direction of the forming rollers 5 and overlap each other. Figure 4As shown in the figure, the adjacent three forming roller tables 5 are taken as an example, the driving end of the forming roller table 5 is connected through two pressing mechanisms, the forming roller table 5 in the middle is connected to the two pressing mechanisms at the same time, so that the pressing frames 1 of the two pressing mechanisms are partially overlapped, one of the pressing frames 1 is on the outside and the other is on the inside. According to the arrangement mode, the multiple pressing mechanisms are arranged in an overlapping manner along the arrangement direction of the forming roller table 5.

[0051] Preferably, after the two adjacent pressing frames 1 are partially overlapped, the pressing heads 2 on the two pressing frames 1 are offset by a certain distance in the direction perpendicular to the chain direction (i.e. perpendicular to the glass conveying direction). For this purpose, as shown in the figure, a spacer sleeve 8 is further sleeved on the pin shaft 201 of the pressing frame 1 on the outside, the spacer sleeve 8 is located between the pressing frame 1 and the rolling body 202, and the thickness of the spacer sleeve 8 is consistent with the thickness of the pressing frame 1, so that the distance between the rolling body 202 in all the pressing mechanisms and the chain in the direction perpendicular to the glass conveying direction is kept consistent, so as to obtain a consistent pressing effect. Figure 5

[0052] Preferably, in order to further ensure the pressing effect of the pressing head 2 on the chain and reduce the occurrence of chain jumping, when the pressing head 2 is located above the chain, as shown in the figure, the bottom of the rolling body 202 of the pressing head 2 is lower than the top of the sprocket 7, so as to ensure that the chain can always mesh with the sprockets 7 on both sides of the pressing head 2 and will not produce tooth skipping. Similarly, when the pressing head 2 is located below the chain, the top of the rolling body 202 of the pressing head 2 is higher than the bottom of the sprocket 7. Figure 6

[0053] Preferably, the height difference between the bottom of the rolling body 202 and the top of the sprocket 7 and the height difference between the top of the rolling body 202 and the bottom of the sprocket 7 are both not more than 5 mm.

[0054] Preferably, in the transmission device, the roller mounting holes on the multiple pressing frames 1 are arranged in an alternating manner of the waist-shaped hole 101 and the circular hole 102 along the arrangement direction of the forming roller table 5.

[0055] Embodiment 3

[0056] A transmission device for curved glass forming, the difference between this embodiment and embodiment 2 is that the transmission mechanism in this embodiment adopts a synchronous belt transmission mechanism, the sprocket 7 in embodiment 2 is replaced by a synchronous belt wheel 9, and the positional relationship between the rolling body 202 and the synchronous belt wheel 9 in the pressing mechanism is as shown in the figure. Figure 7 When the pressing head is located above the synchronous belt, the bottom of the rolling body 202 on the pressing head is lower than the top of the synchronous belt wheel 9, so that the synchronous belt can always mesh with the synchronous belt wheel 9.

[0057] Embodiment 4

[0058] As shown in the figure, the pressing head 2 of the pressing mechanism is connected to the transmission mechanism through a transmission shaft 10, the transmission shaft 10 is connected to the transmission mechanism through a transmission device, and the transmission device is connected to the transmission shaft 10 through a transmission hole 11. Figure 8 ​​As shown in the figure, a forming section for forming a curved glass comprises two sets of oppositely arranged arc plates 10 and a plurality of forming roller beds 5 located between the two sets of arc plates 10, the arc plate 10 is provided with an arc surface, the curvature of the arc surface is matched with the curvature of the target curved glass, and the plurality of forming roller beds 5 are arranged along the bending direction of the arc surface.

[0059] Each set of arc plates 10 is divided into an upper arc plate 1001 and a lower arc plate 1002, the lower edge of the upper arc plate 1001 is the arc surface, and the curvature of the arc surface is matched with the curvature of the upper curved surface of the target curved glass, the upper edge of the lower arc plate 1002 is the arc surface, and the curvature of the arc surface is matched with the curvature of the lower curved surface of the target curved glass, which ensures the forming precision of the curved glass.

[0060] The forming roller bed 5 between the two upper arc plates 1001 is an upper forming roller bed 501, the two ends of the upper forming roller bed 501 are rotatably connected to the two upper arc plates 1001, and one end of the upper forming roller bed 501 is a transmission end, which is connected to the transmission device of embodiment 2 or embodiment 3 after passing through the upper arc plate 1001, the transmission device connected to the upper forming roller bed 501 is an upper transmission device, and the pressing mechanism in the upper transmission device is an upper pressing mechanism. Similarly, the forming roller bed 5 between the two lower arc plates 1002 is a lower forming roller bed 502, the two ends of the lower forming roller bed 502 are rotatably connected to the two lower arc plates 1002, and one end of the lower forming roller bed 502 is a transmission end, which is connected to the transmission device of embodiment 2 or embodiment 3 after passing through the lower arc plate 1002, the transmission device connected to the lower forming roller bed 502 is a lower transmission device 11, and the pressing mechanism in the lower transmission device 11 is a lower pressing mechanism 12.

[0061] Preferably, the upper transmission device and the lower transmission device 11 are located on different sides of the forming section, which can avoid mutual interference between the upper transmission device and the lower transmission device.

[0062] Preferably, in combination with Figure 3 , 4 As shown in the figure, the forming roller bed 5 is a linear roller bed, and its two ends are clamped with the corresponding arc plate 10 through a thin-walled sleeve 6. The linear roller bed does not need to design bearing mounting steps at both ends of the roller bed, which can maximize the retention of the forming roller bed precision and strength, reduce the amount of jumping during the operation of the forming roller bed, improve the forming precision, and replace the bearing with the thin-walled sleeve 6 to clamp with the arc plate 10, so that the spacing of the forming roller bed 5 can be smaller, and the straight edge length of the finished curved glass can be maximized.

[0063] The structure of the thin-walled sleeve 6 can refer to Figure 9 As shown in the figure, the thin-walled sleeve 6 is provided with a clamping groove 601 for clamping with the arc plate 10, and a positioning groove 602 for positioning and preventing rotation of the thin-walled sleeve 6, the positioning groove 602 can be clamped with the protrusion on the arc plate 10 to avoid rotation of the forming roller bed 5 during rotation.

[0064] In other embodiments, the thin-wall sleeve 6 can also be fixed on the arc plate 10 by means of bolt connection to realize positioning of the thin-wall sleeve 6.

[0065] Preferably, the thin-wall sleeve is made of brass, red copper, tin bronze, cast iron, alloy steel or ceramic.

[0066] Preferably, the two upper arc plates 1001 and the two lower arc plates 1002 are connected by a plurality of fixing shafts 13, and the two opposite arc plates 10 can be adjusted as a whole when the forming section position is adjusted.

[0067] Embodiment 5

[0068] A curved glass production equipment comprises sequentially arranged upper sheet table, heating section, forming section and lower sheet table, and the glass to be processed is sequentially subjected to sheeting, heating, forming and sheeting to complete processing. The forming section is the forming section as described in Embodiment 4.

[0069] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit the same, and 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 without departing from the spirit and scope of the present application is within the protection scope of the claims.

Claims

1. A pressing mechanism for forming a curved glass, characterized by: The pressing mechanism comprises a pressing frame (1) and a pressing head (2), the pressing frame (1) is provided with two roller installation holes, each roller installation hole is connected with a driving end of a forming roller (5), and at least one of the roller installation holes is a waist-shaped hole (101); the pressing head (2) is arranged on one side of the pressing frame (1) and is used for pressing on a chain or a synchronous belt of the driving end of the forming roller (5), the pressing head (2) and the two roller installation holes form a triangular structure, so that the position of the pressing head (2) pressing on the chain or the synchronous belt is located between two adjacent forming rollers (5).

2. The holdback mechanism of claim 1, wherein: The pressing head (2) comprises a pin shaft (201) and a rolling body (202) rotatably arranged on the pin shaft (201).

3. A compression mechanism according to claim 1 or 2, characterised in that: A first bearing (4) is arranged in the roller installation hole, and the forming roller (5) is connected in the roller installation hole through the first bearing (4).

4. A transmission device for curved glass forming, comprising a driving motor and a transmission mechanism, the transmission mechanism being a chain transmission mechanism or a synchronous belt transmission mechanism, the transmission mechanism being arranged at a transmission end of a forming roller table (5), characterized in that: The pressing mechanism also comprises the pressing mechanism of any one of claims 1-3.

5. The transmission of claim 4, wherein: The pressing head (2) comprises a pin shaft (201) and a rolling body (202), the pressing frames (1) are arranged in an overlapping manner along the arrangement direction of the plurality of forming rollers (5), a spacer sleeve (8) is arranged on the pin shaft (201) of the pressing frame (1) located at the outer side, the spacer sleeve (8) is located between the pressing frame (1) and the rolling body (202), and the thickness of the spacer sleeve (8) is consistent with the thickness of the pressing frame (1).

6. The transmission of claim 4, wherein: In the plurality of pressing mechanisms, the roller installation hole further comprises a round hole (102), and the round hole (102) and the waist-shaped hole (101) are arranged alternately along the arrangement direction of the forming roller (5).

7. A forming section for forming a curved glass, comprising arc plates (10) and a plurality of forming rollers (5), both ends of the forming rollers (5) being connected to two oppositely arranged arc plates (10), and the forming rollers (5) being divided into upper forming rollers (501) and lower forming rollers (502) according to the setting positions, a forming channel for glass passing being formed between the upper forming rollers (501) and the lower forming rollers (502), characterized in that: The transmission device also comprises the transmission device of any one of claims 4-6, the transmission mechanism and the pressing mechanism are arranged on the outer side of the arc plate (10), the transmission device is divided into an upper transmission device and a lower transmission device (11) for driving the upper forming roller (501) and the lower forming roller (502) to rotate, respectively, and the pressing mechanism comprises an upper pressing mechanism and a lower pressing mechanism (12).

8. A forming section according to claim 7, characterised in that: The pressing head (2) of the upper pressing mechanism is located above the chain or the synchronous belt in the upper transmission device, and the bottom of the pressing head (2) is lower than the top of the sprocket (7) or the synchronous belt wheel (9) in the upper transmission device, the pressing head (2) of the lower pressing mechanism (12) is located below the chain or the synchronous belt in the lower transmission device (11), and the top of the pressing head (2) is higher than the bottom of the sprocket (7) or the synchronous belt wheel (9) in the lower transmission device (11).

9. A forming section according to claim 8, characterised in that: The height difference between the bottom of the pressing head (2) of the upper pressing mechanism and the top of the sprocket (7) or the synchronous belt wheel (9) is less than 5 mm, and the height difference between the top of the pressing head (2) of the lower pressing mechanism (12) and the bottom of the sprocket (7) or the synchronous belt wheel (9) is less than 5 mm.

10. The forming section of claim 7 wherein: The upper transmission device and the lower transmission device (11) are located on different sides of the forming section.

11. The forming section of claim 7 wherein: The forming roller (5) is a linear roller, both ends of the forming roller (5) are rotatably sleeved in a thin-walled sleeve (6), and the forming roller (5) is clamped with the arc plate (10) through the thin-walled sleeve (6), the thin-walled sleeve (6) is provided with a clamping groove (601) clamped with the arc plate (10), and the thin-walled sleeve (6) and the arc plate (10) are circularly positioned through a positioning structure.

12. The forming section of claim 7 wherein: The two oppositely arranged arc plates (10) are fixedly connected into a whole through a fixed shaft (13).

13. A curved glass production apparatus comprising a sheet loading station, a heating section, a forming section and a sheet unloading station arranged in a process sequence, the glass to be processed being successively subjected to loading, heating, forming and unloading, the process being completed, characterized in that: The forming section is according to any one of claims 7-12.

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