Preforming system for curved glass production and curved glass production equipment

Abstract

The utility model relates to a pre-forming system for curved glass production and curved glass production equipment. The pre-forming system comprises a pre-forming roller way, a pre-forming arc plate and an adjusting unit, the two groups of pre-forming arc plates are distributed on the two sides of the glass conveying direction, and each group of pre-forming arc plates is provided with a pre-forming arc surface; the two ends of the pre-forming roller way are each provided with one adjusting unit and connected with the pre-forming arc plates through the adjusting units. Each pre-forming roller way is provided with an initial position and at least one fine adjustment position, when all the pre-forming roller ways are located at the initial positions, all the pre-forming roller ways are arranged in the shape of a pre-forming arc-shaped surface, and each pre-forming roller way moves on a pre-forming arc-shaped plate in the radial direction through a corresponding adjusting unit, so that switching among different positions is achieved; the curved glass production equipment comprises an upper sheet table, a heating section, a pre-forming system, a forming section and a lower sheet table. According to the utility model, the local radian of the conveying surface of the roller way of the pre-forming system can be adjusted, and the forming precision of curved glass is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the hot bending glass forming technical field, concretely relates to a kind of preforming system and curved glass production equipment for curved glass production. BACKGROUND

[0002] Glass is a material with a large coefficient of thermal expansion, when cooling from a high temperature, the outside cools down before the inside and starts to shrink, while the inside still maintains a high temperature, this temperature gradient will cause stress to occur. These internal stresses can cause the shape of curved glass to change slightly, that is, after being deformed by heat, there will be a rebound phenomenon trying to return to its original state. During the hot bending forming process of curved glass, if factors such as changes in ambient temperature or furnace temperature, adjustments in production process, etc. occur, it may cause different rebound amounts of the bent glass, for example, if the furnace temperature is too high, it may make the glass too soft, resulting in an increased rebound amount after forming. At this time, it is necessary to adjust the forming radius of the hot glass to ensure that the arc of the curved glass obtained is the desired arc.

[0003] The preforming system in the existing curved glass production equipment has the problem of unadjustable preforming curvature, which is difficult to meet the actual production needs. UTILITY MODEL CONTENTS

[0004] The utility model aims to provide a kind of preforming system and curved glass production equipment for curved glass production, its preforming system can adjust the preforming radius of hot glass, to improve the forming precision of curved glass.

[0005] To achieve the above-mentioned purpose, the first technical solution adopted by the utility model is: a kind of preforming system for curved glass production, including preforming roller way, preforming arc plate and adjusting unit;The preforming arc plate is provided with two groups, and is distributed on the two sides of glass conveying direction, and each group of preforming arc plate is provided with preforming arc surface;The two ends of the preforming roller way are respectively provided with a group of adjusting units, and are connected with the preforming arc plate through adjusting unit;The preforming roller way has initial position and at least one fine adjustment position, when all preforming roller ways are in initial position, all preforming roller ways are arranged along the shape of the preforming arc surface, and each preforming roller way is moved radially on the preforming arc plate through the corresponding adjusting unit, to realize the switching of initial position and fine adjustment position and the switching between different fine adjustment positions.

[0006] Its beneficial effects are: by setting adjusting unit, the roller way conveying surface of preforming system is adjusted locally, to realize the effect of adjusting glass curve.

[0007] As an implementation of the adjusting unit, the adjusting unit comprises a roller bed support, a mounting plate and an adjusting bolt; the roller bed support is fixedly connected with the mounting plate, a plurality of threaded holes for the adjusting bolt to pass through are formed on the preformed arc plate, the mounting plate is connected with the preformed arc plate through the adjusting bolt, and an adjusting hole is arranged on the mounting plate, and the radial movement of the preformed roller bed is realized by adjusting the position of the adjusting bolt in the adjusting hole.

[0008] The beneficial effect is that the adjusting hole is formed on the mounting plate, the adjusting bolt passes through the adjusting hole, the position of the adjusting bolt in the adjusting hole is adjusted, the local arc of the roller bed conveying surface is adjusted, and the effect of adjusting the glass curved surface is realized.

[0009] Preferably, the preformed roller bed is a straight-line roller bed, the roller bed support is a thin-walled sleeve, and the mounting plates are arranged in parallel at two ends of the thin-walled sleeve, and the distance between the two mounting plates is consistent with the thickness of the preformed arc plate.

[0010] The beneficial effect is that the straight-line roller bed does not need to be designed with bearing mounting steps at two ends of the roller bed, the accuracy and strength of the preformed roller bed can be maximally reserved, the amount of jumping during the operation of the preformed roller bed is reduced, and the forming accuracy of the roller bed is improved; in the scheme, the thin-walled sleeve is used to replace the bearing and the preformed arc plate, the distance between the roller beds can be small, and the straight edge length of the finished curved glass is maximally reduced.

[0011] Specifically, the adjusting hole is a waist-shaped hole.

[0012] The beneficial effect is that the position of the adjusting bolt in the adjusting hole is conveniently adjusted, and the preformed roller bed can move in the radial direction.

[0013] As another implementation of the adjusting unit, the adjusting unit is a lead screw lifting mechanism, comprising a lead screw, a nut matched with the lead screw and a roller bed support; the roller bed support is rotationally connected with an end of the lead screw, the nut is fixed on the preformed arc plate, the other end of the lead screw is used for being connected to an external power, and the lead screw is arranged in the radial direction of the preformed arc plate.

[0014] The beneficial effect is that another structure form for realizing the radial movement of the preformed roller bed is given, and the user can select according to the actual situation.

[0015] Further, the preformed roller bed is a straight-line roller bed, the roller bed support is a thin-walled sleeve, and the end of the lead screw is rotationally connected to the thin-walled sleeve.

[0016] The beneficial effect is that the straight line type roller does not need to design bearing mounting steps at both ends of the roller, which can maximize the retention of the preforming roller precision and strength, reduce the bounce amount during the preforming roller operation, and improve the roller forming precision; since the thin wall sleeve is used to replace the bearing and the preforming arc plate in the scheme, the spacing of the roller can be small, which maximally reduces the straight edge length of the finished curved surface glass.

[0017] In the above scheme, the preforming roller diameter is 8mm-25mm.

[0018] The beneficial effect is that the thin roller is used for glass forming, which can reduce the straight edge phenomenon after glass forming and improve the glass forming quality.

[0019] In the above scheme, each group of preforming arc plates includes upper and lower matched upper and lower preforming arc plates, the preforming roller includes preforming upper and lower rollers, and the adjusting unit includes upper and lower adjusting units, the upper adjusting unit is connected with both ends of the preforming upper roller, and the lower adjusting unit is connected with both ends of the preforming lower roller.

[0020] The beneficial effect is that the forming channel for the glass passing through is formed, the preforming upper and lower rollers can cooperate with each other to reduce the rebound amount after the glass deformation, and the preforming upper and lower rollers can be independently adjusted in position to improve the precision of local adjustment of the curvature.

[0021] Preferably, the preforming system further includes a connecting roller, both ends of the connecting roller are connected to the end of the lower preforming arc plate through the adjusting unit, and the lower preforming arc plate is rotatably arranged on the rack to realize the overturning of the preforming system.

[0022] The beneficial effect is that the connection of the preforming roller and the upstream or downstream conveying roller can be realized after the overturning of the preforming arc plate.

[0023] Further, the lower preforming arc plate is connected with the rack through a supporting plate, and the lower profile surface of the lower preforming arc plate and the upper surface of the supporting plate are provided with intermeshing teeth.

[0024] The beneficial effect is that the overturning of the preforming arc plate is realized through the intermeshing tooth structure, and the sliding of the preforming system in the overturning process is avoided, and the rolling overturning is realized.

[0025] Further, the connecting roller and the preforming roller adjacent thereto are drivingly connected through independent driving mechanisms.

[0026] The beneficial effect is that on the one hand, the maintenance of the connecting roller is facilitated, and on the other hand, the synchronous rotation of the connecting roller and the preforming roller can be ensured.

[0027] Preferably, the preforming system further comprises a redirecting sprocket arranged on the preforming arc plate, and the chain driving the preforming roller is redirected by the redirecting sprocket and then connected to the power mechanism on the frame.

[0028] The beneficial effect is that the chain is connected to the power mechanism after being redirected.

[0029] The utility model further provides still another technical scheme: a curved glass production equipment, including the upper piece platform, heating section, forming section and lower piece platform which are arranged in sequence according to the process sequence, and the glass to be processed is sequentially subjected to the processes of upper piece, heating, forming and lower piece, and the processing is completed;The preforming system described above is arranged between the heating section and the forming section.

[0030] The beneficial effect is that the preforming system can adjust the forming curvature of the hot glass output from the heating furnace, thereby improving the forming precision of the curved glass.

[0031] As an embodiment of the forming section, the forming section is provided with a forming system, and the forming system comprises a forming arc plate and a forming roller, and the arc length of the forming arc surface of the forming arc plate is greater than the arc length of the preforming arc surface of the preforming arc plate;The preforming arc surface of the preforming arc plate is smoothly connected to the forming arc surface of the forming arc plate.

[0032] The beneficial effect is that the preforming roller and the forming roller can be smoothly connected.

[0033] As an option, the forming arc plate and the preforming arc plate are integrated.

[0034] The beneficial effect is that the preforming system can be added by directly modifying the front end of the forming arc plate of the forming section, thereby saving space and reducing cost;At the same time, when producing a large number of curved glasses with the same radius, the glass shape can be made more consistent.

[0035] As another option, the forming arc plate and the preforming arc plate are in a split structure and are connected by a connecting piece.

[0036] The beneficial effect is that when producing curved glasses with different radii, one set of preforming system can be used with forming systems with different curvatures to realize the forming of curved glasses with multiple radii, thereby reducing the investment cost of equipment.

[0037] As another embodiment of the forming section, the forming section is provided with a forming system, and the forming system comprises a variable arc mechanism.

[0038] The beneficial effect is that a conventional variable arc mechanism can be used as a forming system to expand the application range of the preforming system.

[0039] The utility model discloses the beneficial effect is: the utility model discloses can change the position of the adjusting screw bolt of adjusting unit in the waist type hole of mounting plate, and further realizes the adjustment of the roller bed position connected with mounting plate to improve the forming precision of curved glass.

[0040] The preforming system and the forming section in the curved glass production equipment can be arranged as an integral structure or a split structure, thereby meeting the forming of different glasses. BRIEF DESCRIPTION OF DRAWINGS

[0041] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows, 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 creative labor.

[0042] Figure 1 It is the structural schematic diagram of preforming system in embodiment 1;

[0043] Figure 2 It is the assembly structure schematic diagram of preforming roller bed in the utility model;

[0044] Figure 3 It is the structural schematic diagram of another adjusting unit in embodiment 1;

[0045] Figure 4 It is the structural schematic diagram of preforming system and forming section integral arrangement in embodiment 2;

[0046] Figure 5 It is the integral structure schematic diagram of preforming system and forming section integral arrangement in embodiment 2;

[0047] Figure 6 It is the structural schematic diagram of preforming system and forming section split arrangement in embodiment 3;

[0048] The markings in the diagram are: 1. Mounting plate; 2. Thin-walled sleeve; 3. Drive sprocket; 4. Pre-forming roller conveyor; 41. Upper pre-forming roller conveyor; 42. Lower pre-forming roller conveyor; 5. Pre-forming arc plate; 51. Upper pre-forming arc plate; 52. Lower pre-forming arc plate; 6. Adjusting bolt; 7. Adjusting hole; 8. Redirecting sprocket; 9. Pre-forming arc surface; 10. Connecting roller conveyor; 11. Forming arc plate; 12. Integrated arc plate; 13. Forming roller conveyor; 131. Upper forming roller conveyor; 132. Lower forming roller conveyor; 14. Forming arc surface; 15. Nut; 16. Lead screw. Detailed Implementation

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention in any way.

[0050] Example 1: As Figure 1 As shown, a preforming system for curved glass production includes a preforming roller conveyor, a preforming arc plate, and multiple sets of adjustment units. Two sets of preformed arc plates are provided, distributed on both sides of the glass conveying channel. Each set of preformed arc plates includes an upper preformed arc plate 51 and a lower preformed arc plate 52 that cooperate with each other, forming a preformed arc surface 9 between the upper preformed arc plate 51 and the lower preformed arc plate 52. The preformed roller conveyor 4 is arranged between the two sets of preformed arc plates and is spaced apart along the glass conveying direction. The preformed roller conveyor is divided into an upper preformed roller conveyor 41 and a lower preformed roller conveyor 42. The adjustment unit includes an upper adjustment unit and a lower adjustment unit. The upper adjustment unit is connected to both ends of the upper preformed roller conveyor 41, and the lower adjustment unit is connected to both ends of the lower preformed roller conveyor 42. The upper preformed roller conveyor 41 is rotatably set on the lower edge of the upper preformed arc plate 51 through the upper adjustment unit, and the lower preformed roller conveyor 42 is rotatably set on the upper edge of the lower preformed arc plate 52 through the lower adjustment unit. The preformed roller conveyors 4 are arranged along the shape of the preformed arc surface 9 and can be independently adjusted in position by the corresponding adjustment unit.

[0051] The preforming roller conveyor 4 has an initial position and at least one fine-tuning position. When all the preforming roller conveyors 4 are in the initial position, all the preforming roller conveyors 4 are arranged along the shape of the preforming arc surface 9. The adjustment unit is used to drive the connected preforming roller conveyors 4 to move radially along the preforming arc surface 9, so as to realize the switching of the preforming roller conveyors 4 between the initial position and the fine-tuning position, as well as the switching between different fine-tuning positions.

[0052] Furthermore, the lower edge of the upper preformed arc plate 51 is provided with multiple upper grooves spaced apart along the preformed arc surface 9, with the openings of the upper grooves facing the lower preformed arc plate 52. The preformed upper roller conveyor 41 moves radially within the upper grooves under the drive of the upper adjusting unit. The upper edge of the lower preformed arc plate 52 is provided with multiple lower grooves spaced apart along the preformed arc surface 9, with the openings of the lower grooves facing the upper preformed arc plate 51. The preformed lower roller conveyor 42 moves radially within the lower grooves under the drive of the lower adjusting unit. The upper and lower grooves provide space and guidance for the radial movement of the preformed roller conveyor 4.

[0053] Specifically, the upper and lower adjustment units have the same structure, including a roller support, a mounting plate 1, and adjusting bolts 6. The roller support is connected to the mounting plate 1 and rotatably connected to the end of the pre-forming roller 4, enabling the pre-forming roller 4 to rotate relative to the mounting plate 1 and the pre-forming arc plate 5. The pre-forming arc plate 5 has threaded holes along the pre-forming arc surface 9 for the adjusting bolts 6 to pass through. The mounting plate 1 is connected to the corresponding upper pre-forming arc plate 51 or lower pre-forming arc plate 52 via adjusting bolts 6. The mounting plate 1 is provided with adjusting holes 7, and the radial movement of the pre-forming roller 4 is achieved by changing the position of the adjusting bolts 6 within the adjusting holes 7.

[0054] Preferred, such as Figure 2 As shown, the pre-forming roller conveyor 4 is a straight roller conveyor, the roller conveyor support is a thin-walled sleeve 2, and two mounting plates 1 are arranged parallel to each other at both ends of the thin-walled sleeve 2. The thin-walled sleeve 2 and the mounting plate 1 are integrally formed. The distance between the two mounting plates 1, that is, the distance between the inner sides of the two mounting plates 1, is consistent with the thickness of the upper pre-forming arc plate 51 or the lower pre-forming arc plate 52 to be installed. This allows the two mounting plates 1 to be located on the inner and outer sides of the upper pre-forming arc plate 51 or the lower pre-forming arc plate 52 and to clamp the upper pre-forming arc plate 51 or the lower pre-forming arc plate 52.

[0055] More preferably, the thin-walled sleeve 2 is made of brass, copper, tin bronze, cast iron, alloy steel or ceramic.

[0056] Preferably, the diameter of the preforming roller 4 is 8mm-25mm, which is a fine roller 4, which can reduce the straight edge phenomenon after glass forming and improve the glass forming quality.

[0057] In this embodiment, the adjusting hole 7 is an oblong hole. In other embodiments, the adjusting hole 7 can be set to other shapes to facilitate the adjustment of the position of the adjusting bolt 6 in the adjusting hole.

[0058] In another embodiment of this invention, the upper and lower adjustment units may also employ a screw lifting mechanism, such as... Figure 3As shown, it comprises a screw rod 16, a nut 15 matched with the screw rod 16, and a roller bed support; the roller bed support adopts a thin-wall sleeve 2, the outer end of the thin-wall sleeve 2 is rotationally connected with one end of the screw rod 1, the nut 15 is fixed on the preforming arc plate 5, the other end of the screw rod 16 is used for connecting with external power, and the screw rod 16 is arranged along the radial direction of the preforming arc plate 5. Under the driving of the screw rod, the preforming roller bed 4 can move along the radial direction of the preforming arc plate 5, so as to realize the switching between the initial position and the fine adjustment position of the preforming roller bed 4 and the switching between different fine adjustment positions.

[0059] Preferably, the lower preforming arc plate 52 of the preforming system is rotationally arranged on the rack to realize the overturning of the preforming system, so as to facilitate the connection of the preforming roller bed 4 and the upstream conveying roller bed or the downstream conveying roller bed after overturning.

[0060] Further preferably, the lower preforming arc plate 52 is connected with the rack through a support plate, and the lower profile surface of the lower preforming arc plate 52 and the upper surface of the support plate are provided with intermeshing teeth, so that the sliding of the lower preforming arc plate 52 relative to the support plate during overturning can be avoided, and the rolling overturning of the preforming system is realized, so as to ensure the consistency of the position of the preforming system before and after the film enters and after the film exits before and after the overturning of the preforming system, thereby ensuring the better connection of the preforming roller bed 4 and the upstream and downstream conveying roller beds.

[0061] Further, the preforming lower roller bed 42 and one end of the preforming upper roller bed 41 are provided with a transmission sprocket 3, and the preforming lower roller bed 42 or the preforming upper roller bed 41 is driven to rotate through the connection of the chain with the transmission sprocket 3.

[0062] Preferably, the transmission sprocket 3 on the preforming lower roller bed 42 and the transmission sprocket 3 on the preforming upper roller bed 41 are arranged on different sides, so as to reduce the space occupation.

[0063] Preferably, the preforming system further comprises a connection roller bed 10, and the connection roller bed 10 is arranged at the end of the preforming system. Specifically, the connection roller bed 10 is arranged on the lower preforming arc plate 52 through a lower adjusting unit, and is used for realizing the connection of the preforming system with the upstream or downstream conveying roller bed after overturning.

[0064] Further, the connecting roller table 10 can be driven independently, and can also be driven synchronously with the adjacent preforming lower roller table 42 through a chain. When driven independently, the rotating speed of the connecting roller table 10 needs to be controlled to be synchronous with the preforming roller table 4. When the connecting roller table 10 and the adjacent preforming lower roller table 42 are driven through a chain connection, two sets of transmission sprockets 3 need to be arranged at the end of the preforming lower roller table 42, one set of transmission sprockets 3 is used to connect with other preforming lower roller tables 42, and the other set of transmission sprockets 3 is used to connect with the transmission sprockets 3 on the connecting roller table 10, so that the synchronous rotation of the connecting roller table 10 and all the preforming lower roller tables 42 can be realized.

[0065] In other embodiments, the connecting roller table 10 is arranged at the front end and the rear end of the preforming system respectively, and the connecting roller table 10 at the front end can be connected with the upstream conveying roller table, and the connecting roller table 10 at the rear end can be connected with the downstream conveying roller table.

[0066] Preferably, the preforming system is also provided with a reversing sprocket 8, which is arranged on the upper preforming arc plate 51 and the lower preforming arc plate 52, and the chain for driving the preforming upper roller table 41 and the chain for driving the preforming lower roller table 42 are connected with the power mechanism through the corresponding reversing sprocket 8 after being reversed.

[0067] Further, the reversing sprocket 8 is arranged at two positions, respectively at the front end and the rear end of the preforming arc plate 5.

[0068] Embodiment 2: A curved glass production equipment, comprising an upper sheet table, a heating section, a forming section and a lower sheet table arranged in sequence according to the process sequence, and the glass to be processed passes through the upper sheet, the heating, the forming and the lower sheet in sequence to complete the processing, and the preforming system as described in embodiment 1 is arranged between the heating section and the forming section.

[0069] As shown in Figure 4 , 5 In the present embodiment, the forming section is provided with a forming system, which comprises a forming arc plate and a forming roller table 13. The forming arc plate is provided with two sets of forming arc plates, which are distributed on both sides of the glass conveying channel. Each set of forming arc plates is divided into an upper forming arc plate and a lower forming arc plate arranged correspondingly. The upper forming arc plate and the lower forming arc plate form a forming arc surface 14 therebetween. The forming roller table 13 is divided into a forming upper roller table 131 and a forming lower roller table 132. A plurality of forming upper roller tables 131 and a plurality of forming lower roller tables 132 are respectively distributed between two upper forming arc plates and two lower forming arc plates along the forming arc surface 14. The two ends of the forming upper roller table 131 are rotatably supported on the two upper forming arc plates, and the two ends of the forming lower roller table 132 are rotatably supported on the two lower forming arc plates.

[0070] Preferably, in this embodiment, the pre-forming arc plate 5 and the forming arc plate are integrally formed, that is, an integral arc plate 12 is adopted. The front section of the integral arc plate 12 is equipped with the pre-forming roller conveyor 4 through the adjustment unit as a pre-forming system, and the remaining positions of the integral arc plate 12 are equipped with the forming roller conveyor 13 as a forming system. The pre-forming arc surface 9 on the pre-forming arc plate 5 and the forming arc surface 14 on the forming arc plate are connected and located on the same arc surface. Moreover, a connecting roller conveyor 10 is provided at both the front and rear ends of the integral arc plate 12. The connecting roller conveyor 10 at the front end is used to connect with the conveyor roller conveyor of the heating section, and the connecting roller conveyor 10 at the rear end is used to connect with the conveyor roller conveyor of the lower plate stage.

[0071] This embodiment integrates the preforming system and the forming system onto a single curved plate 12, which can be used for mass production of curved glass with the same radius, ensuring the consistency of glass shape and improving forming accuracy.

[0072] The working process of the curved glass production equipment in this embodiment is as follows: hot glass is output from the heating section, and the integrated arc plate 12 is flipped in the direction of the heating section under the drive of external force, so that the connecting roller 10 is flush with the conveying roller of the heating section. The hot glass is conveyed from the heating section to the pre-forming roller 4 through the connecting roller 10. Under the action of the pre-forming system, the hot glass is pre-formed while being conveyed. Then it enters the forming system of the forming section to continue forming. The formed curved glass is output from the forming section. The integrated arc plate is flipped in the direction of the lower sheet stage under the drive of external force, so that the connecting roller 10 is flush with the conveying roller of the lower sheet stage. The curved glass is conveyed from the forming section to the lower sheet stage for unloading through the connecting roller 10.

[0073] Before glass forming, the staff adjusts the position of the preforming roller 4 according to the different rebound amounts of the curved glass due to different ambient temperatures, furnace temperatures, and production process adjustments. This allows for the adjustment of the preforming curvature of the hot glass, thereby improving the forming accuracy of the curved glass.

[0074] Once the glass has fully entered the preforming system or the forming section, the integrated arc plate 12 can be flipped again so that the connecting roller 10 at the rear end is flush with the conveying roller of the lower plate stage.

[0075] Example 3: As Figure 6 As shown, the difference between the curved glass production equipment in this embodiment and that in embodiment 2 is that the preforming system and the forming system are set separately in this embodiment, that is, the preforming arc plate 5 and the forming arc plate 11 are set independently, but the two need to be connected together by connectors such as bolts, hinges, etc., so that the preforming roller 4 and the forming roller 13 between them can be connected to ensure that the glass can be continuously formed during the conveying process.

[0076] In the embodiment, a preforming system can be used with forming systems having different curvatures to achieve forming of curved glass of various radii, reducing the cost of equipment investment.

[0077] In Embodiment 2 and Embodiment 3, the arc length of the forming arc surface 14 is greater than the arc length of the preforming arc surface 9, and the preforming arc surface 9 smoothly transitions to the forming arc surface 14.

[0078] Embodiment 4: The curved glass production equipment of the embodiment differs from Embodiment 2 in that the forming system in the forming section includes an arc changing mechanism that drives the forming roller to change the arc. The arc changing mechanism uses a conventional arc changing mechanism in the art, such as a pulling arc changing mechanism.

[0079] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit it, 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 that does not deviate from the spirit and scope of the present application is within the protection scope of the claims.

Claims

1. A preform system for the production of curved glass characterized in that: The preforming system comprises a preforming roller (4), a preforming arc plate (5) and an adjusting unit; the preforming arc plate (5) is provided with two groups, which are distributed on both sides of the glass conveying direction, and each group of the preforming arc plate (5) is provided with a preforming arc surface (9); one group of the adjusting unit is arranged at the two ends of the preforming roller (4) respectively, and the preforming roller (4) is connected with the preforming arc plate (5) through the adjusting unit; the preforming roller (4) has an initial position and at least one fine adjustment position, when all the preforming rollers (4) are in the initial position, all the preforming rollers (4) are arranged along the shape of the preforming arc surface (9), and each preforming roller (4) is radially moved on the preforming arc plate (5) through the corresponding adjusting unit, so as to realize the switching between the initial position and the fine adjustment position and the switching between different fine adjustment positions.

2. The preform system for producing curved glass according to claim 1, wherein: The adjusting unit comprises a roller support, a mounting plate (1) and an adjusting bolt (6); the roller support is fixedly connected with the mounting plate (1), a plurality of threaded holes for the adjusting bolt (6) to pass through are formed in the preforming arc plate (5), the mounting plate (1) is connected with the preforming arc plate (5) through the adjusting bolt (6), and an adjusting hole (7) is arranged on the mounting plate (1), so that the radial movement of the preforming roller (4) is realized by adjusting the position of the adjusting bolt (6) in the adjusting hole (7).

3. The preform system for producing curved glass according to claim 2, wherein: The preforming roller (4) is a linear roller, the roller support is a thin-walled sleeve (2), and the two mounting plates (1) are arranged at the two ends of the thin-walled sleeve (2) in parallel, and the distance between the two mounting plates (1) is consistent with the thickness of the preforming arc plate (5).

4. The preform system for producing curved glass according to claim 2, wherein: The adjusting hole (7) is a waist-shaped hole.

5. The preform system for producing curved glass according to claim 1, wherein: The adjusting unit is a screw rod lifting mechanism, which comprises a screw rod (16), a nut (15) matched with the screw rod (16) and a roller support; the roller support is rotationally connected with the end of the screw rod (16), the nut (15) is fixed on the preforming arc plate (5), the other end of the screw rod (16) is used for being connected with external power, and the screw rod (16) is arranged along the radial direction of the preforming arc plate (5).

6. The preform system for producing curved glass according to claim 5, wherein: The preforming roller (4) is a linear roller, the roller support is a thin-walled sleeve (2), and the end of the screw rod (16) is rotationally connected with the thin-walled sleeve (2).

7. The preform system for producing curved glass according to claim 1, wherein: The diameter of the preforming roller (4) is 8mm-25mm.

8. The preform system for producing curved glass according to any one of claims 1-7, wherein: Each group of the preforming arc plate (5) comprises an upper preforming arc plate (51) and a lower preforming arc plate (52) matched with each other, the preforming roller (4) comprises a preforming upper roller (41) and a preforming lower roller (42), and the adjusting unit comprises an upper adjusting unit and a lower adjusting unit, the upper adjusting unit is connected with the two ends of the preforming upper roller (41), and the lower adjusting unit is connected with the two ends of the preforming lower roller (42).

9. The preform system for producing curved glass according to claim 8, wherein: The preforming system further comprises a connecting roller (10), the two ends of the connecting roller (10) are connected with the ends of the lower preforming arc plate (52) through the adjusting unit respectively, and the lower preforming arc plate (52) is rotationally arranged on a rack, so as to realize the overturning of the preforming system.

10. The preform system for producing curved glass according to claim 9, wherein: The lower preforming arc plate (52) is connected with the frame through a support plate, and the lower profile surface of the lower preforming arc plate (52) is provided with teeth which are engaged with the upper surface of the support plate.

11. The preform system for producing curved glass according to claim 9, wherein: The link roller (10) and the preforming roller (4) adjacent to the link roller (10) are connected through independent transmission mechanisms.

12. The preform system for producing curved glass according to claim 1, wherein: The preforming system further comprises a reversing sprocket (8) which is arranged on the preforming arc plate (5) and is used for connecting the chain driving the preforming roller (4) to the power mechanism on the frame after the chain is reversed through the reversing sprocket (8).

13. A curved glass production apparatus comprising, in the order of the process, an upper table, a heating section, a forming section, and a lower table, through which a glass to be processed is sequentially passed to be processed, characterized in that, The preforming system as claimed in any one of claims 1-12 is arranged between the heating section and the forming section.

14. The curved glass production apparatus of claim 13, wherein: The forming section is provided with a forming system which comprises a forming arc plate (11) and a forming roller (13), the arc length of the forming arc surface (14) of the forming arc plate (11) is greater than the arc length of the preforming arc surface (9) of the preforming arc plate (5), and the preforming arc surface (9) of the preforming arc plate (5) is smoothly connected to the forming arc surface (14) of the forming arc plate (11).

15. The curved glass production apparatus of claim 14, wherein: The forming arc plate (11) and the preforming arc plate (5) are integrated.

16. The curved glass production apparatus of claim 14, wherein: The forming arc plate (11) and the preforming arc plate (5) are separate structures and are connected through a connecting piece.

17. The curved glass production apparatus of claim 13, wherein: The forming section is provided with a forming system which comprises a variable-arc mechanism.

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