CN111453978B - Bent glass toughening forming method - Google Patents
Bent glass toughening forming method Download PDFInfo
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- CN111453978B CN111453978B CN202010177359.1A CN202010177359A CN111453978B CN 111453978 B CN111453978 B CN 111453978B CN 202010177359 A CN202010177359 A CN 202010177359A CN 111453978 B CN111453978 B CN 111453978B
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
- C03B27/0404—Nozzles, blow heads, blowing units or their arrangements, specially adapted for flat or bent glass sheets
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The invention relates to a curved glass tempering forming method, in the method, the gradual change section and the forming tempering section are respectively preformed into arcs of a flexible shaft roller way, then the smooth and stable butt joint between the roller way surfaces of the gradual change section and the forming tempering section is realized through the rotation of the gradual change section and/or the lifting of the forming tempering section, and then the glass is discharged from a furnace and sequentially passes through the furnace, so that the glass can be formed and tempered without carrying out complex arc forming action on equipment after entering the forming tempering section, and the tempering forming method is favorable for the tempering forming of the glass with an ultra-long plate surface.
Description
Technical Field
The invention belongs to the technical field of glass tempering, and particularly relates to a bent glass tempering forming method.
Background
At present, when curved toughened glass (comprising a double curved surface and a single curved surface) with an ultra-long layout is produced, the curved toughened glass must be formed in a gradual change mode due to the large layout of the glass. The glass enters a forming tempering section through a prefabricated arc-forming gradual change section, and then the forming tempering section is lifted to form an arc, wherein the arc is mainly formed in the longitudinal direction. The disadvantages of this approach are: 1. the glass is required to be longitudinally arc-formed after completely entering the forming and tempering section, so that the requirement on the synchronism of an equipment arc-changing mechanism is high, otherwise, the surface of the glass is scratched; 2. because the glass space of a whole page is great, the shaping tempering section is bulky, and becoming the arc of change arc mechanism is consuming time longer for glass temperature reduces, is unfavorable for the shaping, and the glass front end cooling range of advancing into shaping tempering section is great, treats that glass gets into shaping tempering section completely after, glass front end temperature is lower, and difficult shaping consequently seriously influences glass's shaping precision. If before glass gets into, behind the vertical prefabricated arc of shaping tempering section, there is the difference in height between the roll table face of gradual change section and shaping tempering section, even the angle difference, only relies on the lift of shaping tempering section, hardly eliminates the angle difference between the roll table face for glass is difficult smooth steady to get into the shaping tempering section from the gradual change section.
Disclosure of Invention
The invention aims to provide a curved glass tempering forming method, which realizes the stable and smooth butt joint between the roll surfaces of a transition section and a forming tempering section by the rotation of the transition section and/or the lifting of the forming tempering section, so that the transition section and the forming tempering section can be preformed into an arc in advance, and then glass passes through the transition section, so that the glass can be formed and tempered without performing complicated arc forming action on equipment after the glass enters the forming tempering section, and the tempering forming method is favorable for the tempering forming of the glass with an ultra-long plate.
In order to achieve the purpose, the invention adopts the technical scheme that: a bent glass toughening forming method comprises the following steps:
step one, adjusting a gradual change arc forming mechanism of a gradual change section to enable a flexible shaft roller way of the gradual change section to gradually change and prefabricate into an arc: the flexible shaft roller way is prefabricated into a front arc and a rear arc in a gradual change mode, and the axial middle part of the flexible shaft roller way is always positioned on the same plane along the glass conveying direction; after the flexible shaft roller way is gradually prefabricated into an arc, two end parts of the flexible shaft roller way are gradually lifted along the glass conveying direction;
adjusting a forming arc-changing mechanism of the forming tempering section to prefabricate a flexible shaft roller bed of the forming tempering section into an arc;
rotating the roller way surface of the gradual change section and/or the roller way surface of the lifting forming tempering section to realize the stable butt joint of the roller way surface of the gradual change section and the roller way surface of the forming tempering section;
and step four, feeding the glass into a heating furnace, heating to a softening state, discharging, feeding the discharged glass into a gradual change section, gradually changing the glass into an arc through a flexible shaft roller way which is gradually changed into the arc, then feeding the glass into a forming tempering section, and finally forming and tempering to finish the manufacture of the bent tempered glass.
When a plurality of flexible shaft roller ways on the inlet side of the forming tempering section are longitudinally prefabricated into an arc, in the third step, the roller way surface of the transition section needs to be rotated to match the lifting of the roller way surface of the forming tempering section, so that the stable butt joint of the roller way surface of the transition section and the roller way surface of the forming tempering section is realized.
In the first step, the flexible shaft roller way of the gradual change section is subjected to gradual change prefabrication arc forming in the transverse direction by a gradual change arc forming mechanism.
Further, the shaped tempering section has the following various arc-shaped forms:
1. in the second step, the forming arc-changing mechanism comprises a transverse arc-changing mechanism and a longitudinal arc-changing mechanism, the flexible shaft roller ways of the forming tempering section are prefabricated into arcs in the transverse direction through the transverse arc-changing mechanism, and the plurality of flexible shaft roller ways positioned at the inlet side or the outlet side of the forming tempering section realize the prefabricated arcs in the longitudinal direction through the longitudinal arc-changing mechanism.
2. In the second step, the forming variable arc mechanism comprises a transverse variable arc mechanism and a longitudinal variable arc mechanism, and the flexible shaft roller way of the forming tempering section is prefabricated into arcs in the transverse direction and the longitudinal direction through the transverse variable arc mechanism and the longitudinal variable arc mechanism respectively so as to enable the roller way surface of the forming tempering section to form a spherical surface for bearing glass.
Furthermore, in the second step, the upwind fence in the shaped tempering section is prefabricated into an arc in the transverse direction, or the upwind fence in the shaped tempering section is prefabricated into an arc in both the transverse direction and the longitudinal direction.
When the flexible shaft roller way of the gradual change section is prefabricated into an arc, the first flexible shaft roller way is parallel to the roller way of the heating furnace, and the transverse curvature of the last flexible shaft roller way is the same as that of the flexible shaft roller way of the forming tempering section after the flexible shaft roller way is transversely prefabricated into the arc.
The invention has the following innovation points and advantages: the method provided by the invention can perform multi-form arc prefabrication on the flexible shaft roller ways of the gradual change section and the forming tempering section, and then improves or eliminates the height difference and the angle difference (generated when the flexible shaft roller ways at the inlet side of the forming tempering section perform longitudinal arc prefabrication) between the roller way surfaces generated by arc prefabrication through the rotation of the gradual change section and the lifting of the forming tempering section, so that the roller way surfaces of the gradual change section and the forming tempering section can be smoothly and stably butted.
Drawings
FIG. 1 is a schematic view of the structure of an apparatus used in the present invention;
FIG. 2 is a schematic structural diagram of a transition section;
FIG. 3 is a side view of a transition;
FIG. 4 is a schematic view of the transition section after the subframe has been rotated downward;
FIG. 5 is a schematic view of the transition section after the subframe has been rotated upward;
FIG. 6 is a schematic structural view of the gradual change arc forming mechanism and the section bar hinge joint;
FIG. 7 is the schematic view of the transition section and the flexible shaft roller table in the shaping and tempering section after completing the arc forming;
FIG. 8 is a schematic view of a transition section outlet end flexible shaft roller way and a shaping tempering section inlet end flexible shaft roller way in a double curved surface tempered glass production method, which are butted;
the labels in the figure are: 1. the heating furnace, 2, gradual change section, 3, shaping tempering section, 4, main frame, 5, auxiliary frame, 6, transmission shaft, 7, motor, 8, drive wheel, 9, flexible axle roll table, 10, aluminium alloy square pipe, 11, gradual change arcing mechanism, 12, pinch roller mechanism, 13, auxiliary heat section, 14, crank, 15, chain, 16, lug, 17, manual drive device, 18, elevating gear, 19, hinge mechanism, 20, pinch roller, 21, ball hinge, 22, chain structure, 23, middle support, 24, connector, 25, ceramic roll table, 26, flexible axle roll table end, 27, flexible axle roll table middle part.
Detailed Description
The present invention is further described in detail with reference to the drawings and examples, but the invention is not limited thereto.
A curved glass toughening forming method is completed under the coordination of rotation of a roller surface of a gradual change section and lifting of a roller surface of a forming toughening section, and comprises the following steps:
step one, adjusting a gradual change arc forming mechanism 11 of the gradual change section 2 to enable a flexible shaft roller way 9 of the gradual change section 2 to gradually change and prefabricate into an arc: the flexible shaft roller way 9 is gradually prefabricated into a front arc and a rear arc, and the axial middle parts of the flexible shaft roller way 9 are always positioned on the same plane along the glass conveying direction; after the flexible shaft roller way is gradually prefabricated into an arc, two end parts of the flexible shaft roller way 9 are gradually lifted along the glass conveying direction;
adjusting a forming arc-changing mechanism of the forming tempering section 3 to enable a flexible shaft roller table 9 of the forming tempering section 3 to be prefabricated into an arc;
lifting the roller surface of the forming tempering section 3 to eliminate the height difference between the outlet end of the roller surface of the gradual change section 2 and the inlet end of the roller surface of the forming tempering section 3, and realizing the stable butt joint of the roller surface of the gradual change section 2 and the roller surface of the forming tempering section 3;
and step four, feeding the glass into a heating furnace 1, heating to a softening state, discharging, feeding the discharged glass into a gradual change section 2, gradually changing the glass into an arc through a flexible shaft roller table 9 which is gradually changed and prefabricated into the arc, then feeding the glass into a forming tempering section 3, and finally forming and tempering to finish the manufacture of the bent tempered glass.
When a plurality of flexible axle roll tables of shaping tempering section import side carry out vertical prefabrication arcing, because there is comparatively obvious angle difference between the direction of shaping tempering section import side roll table face and the roll table face of gradual change section outlet side, only the roll table face of shaping tempering section goes up and down this moment, can't eliminate this angle difference, consequently, prefabricated fashioned glass is difficult to get into shaping tempering section from the gradual change section level and smooth, at this moment, in carrying out step three, just need the roll table face of rotatory gradual change section, with the lift of cooperation shaping tempering section roll table face, eliminate this angle difference, realize the steady butt joint of gradual change section roll table face and shaping tempering section roll table face.
The flexible shaft bending, tempering and forming equipment used for realizing the method comprises a heating furnace 1, a gradual change section 2 and a forming and tempering section 3 which are sequentially arranged according to the working procedures, as shown in figure 1; the ceramic roller way of the heating furnace 1 forms a plane for supporting glass; the structure of the forming tempering section 3 is the same as that of the tempering section in the existing bent glass tempering equipment, which belongs to the field of the prior art and is not explained herein. The transition section 2 is a rotary transition section, the roller surface of the transition section can rotate up and down within a certain range, the flexible shaft roller way of the forming tempering section 3 and the forming arc-changing mechanism can integrally lift and fall, and the forming tempering section belongs to the conventional technology in the field, so that the structure of the transition section 2 is only explained in detail below.
Example 1: as shown in fig. 2 and 3, the transition section 2 includes a main frame 4 and an auxiliary frame 5, a plurality of aluminum profile square tubes 10 are fixedly arranged on the auxiliary frame 5 at intervals along the glass conveying direction, a flexible shaft roller table 9 parallel to each aluminum profile square tube 10 is correspondingly arranged above each aluminum profile square tube 10, the flexible shaft roller table 9 is bent into an arc by a corresponding transition arc forming mechanism 11, and a roller surface formed by the flexible shaft roller tables 9 in a linear state is coplanar with a roller surface in the heating furnace 1; one end of the auxiliary frame 5 close to the heating furnace 1 is rotatably connected with the main frame 4 in a hinged mode, the rotating axis of the auxiliary frame is collinear with the central axis of the first flexible shaft roller way 9 in a linear state and is parallel to the ceramic roller way 25 of the heating furnace 1, and the hinge is realized through a hinge mechanism 19, such as a pin shaft and the like; one end of the auxiliary frame 5, which is far away from the heating furnace 1, is connected with a traction mechanism arranged on the main frame 4.
Traction mechanism includes motor 7, drive wheel 8, chain 15 and transmission shaft 6, and motor 7 and transmission shaft 6 are all installed on the top of main frame 4, and it is rotatory to be installed at transmission shaft 6 by motor 7 drive transmission shaft 6, and drive wheel 8 is installed at the both ends of transmission shaft 6, and drive wheel 8 passes through chain 15 and realizes the traction to auxiliary frame 5, and two 15 lower extremes of chain can be connected on the lug 16 of auxiliary frame 5 width direction both sides.
When the sub-frame 5 needs to rotate, the chain 15 is pulled by the motor 7, and the sub-frame 5 can be rotated upwards, as shown in fig. 5; when the motor 7 is reversed to loosen the chain 15, the sub-frame 5 is rotated downward as shown in fig. 4. Fig. 4 and 5 only show the rotating state diagram of the auxiliary frame 5, wherein the flexible shaft roller ways 9 are not bent into an arc, and in practical use, the flexible shaft roller ways 9 are prefabricated into an arc first and then the auxiliary frame 5 is rotated, so that the butt joint of the last flexible shaft roller way 9 and the forming tempering section 3 is realized.
The flexible shaft roller way 9 is prefabricated into an arc by the gradual arc forming mechanism 11. The gradual change arcing mechanism 11 comprises an elastic body and a height adjusting mechanism, the flexible shaft roller way 9 is parallel to the elastic body and is installed on the elastic body through a flexible shaft seat, the middle part of the elastic body is fixed on the aluminum profile square tube 10, the height adjusting mechanism is symmetrically arranged on two sides of the middle fixed position of the elastic body along the length direction of the elastic body, the elastic body is controlled to be bent into an arc through the height adjusting mechanism, so that the flexible shaft roller way 9 is arcing, and the height adjusting mechanism can select a screw and nut mechanism driven by a motor or an electric push rod and the like. The structure of the above tapering arc mechanism 11 has been disclosed in the prior application of the present applicant.
The flexible shaft roller way 9 adopts a middle transmission mode, the middle part of the flexible shaft roller way 9 is connected with a roller way transmission shaft, the roller way transmission shaft is arranged on the auxiliary frame 5, a manual driving device 17 is arranged on the auxiliary frame 5, and a crank 14 for rotating the manual driving device 17 is used for manually driving the roller way transmission shaft.
The auxiliary frame 5 is provided with a pressing wheel mechanism 12, the pressing wheel mechanism 12 is arranged at the tail end of the auxiliary frame 5 and fixed on a movable support on the upper portion of the auxiliary frame 5, pressing wheels 20 in the pressing wheel mechanism 12 and rollers on a plurality of flexible shaft roller ways 9 on the outlet side of the gradual change section 2 are correspondingly arranged up and down to press the upper surface of the glass, the movable support is connected with a lifting device 18, and the lifting device 18 realizes the lifting of the pressing wheel mechanism 12 by lifting the movable support.
The pinch roller mechanism 12 further comprises a pinch roller arcing mechanism, the structure of the pinch roller arcing mechanism is the same as that of the gradual arcing mechanism 11, and the pinch roller arcing mechanism mainly comprises an elastic body and an arcing driving mechanism.
In the pinch roller arcing mechanism, the elastomer is positioned above the flexible shaft roller way 9 and is parallel to the flexible shaft roller way 9, the elastomer is connected with the arcing driving mechanism, the pinch rollers 20 are arranged at intervals along the length direction of the elastomer, the arcing driving mechanism is arranged on a movable support on the upper part of the auxiliary frame 5, and the arcing driving mechanism is used for controlling the elastomer to be bent into arcs. The pressing wheel 20 can be installed on the elastic body through an installation seat, a flexible shaft can also be installed on the elastic body, and the pressing wheel 20 is installed on the flexible shaft.
The arc forming driving mechanism and the height adjusting mechanism adopt the same structure.
An auxiliary heating section 13 is further arranged on the movable support at the upper part of the auxiliary frame 5, and the auxiliary heating section 13 is provided with a glass heat-insulating material.
The forming arc-changing mechanism in the forming tempering section 3 comprises a transverse arc-changing mechanism and a longitudinal arc-changing mechanism, wherein the transverse arc-changing mechanism is the same as the gradual arc-changing mechanism 11 of the gradual change section, the transverse arc-changing mechanism belongs to the disclosed prior art, and the specific structure can refer to the gradual arc-changing mechanism and a patent disclosed by the applicant, and the application number is 2019101028914. The longitudinal arc-changing mechanism adopts a chain plate structure which is conventional in the field, and is formed by rotationally connecting a plurality of chain plate assemblies from head to tail sequentially through a rotating shaft, and adjacent chain plate assemblies are connected through a single connecting rod, and the specific structure of the part can be seen in a patent published by the applicant with the application number of 2019101028914, and repeated description is not provided herein.
Example 2: in this embodiment, the arrangement of the flexible shaft roller table 9 and the gradual change arc forming mechanism 11 is different from that of embodiment 1, and the rest of the structure is the same.
In this embodiment, aluminium alloy side pipe 10 sets up on auxiliary frame 5 along perpendicular to glass direction of delivery interval, and aluminium alloy side pipe 10's length direction and glass direction of delivery are unanimous, and flexible axle roll table 9 perpendicular to aluminium alloy side pipe 10 sets up, and every flexible axle roll table 9 passes through the rotatable installation of roll table seat on many aluminium alloy side pipe 10.
The gradual change become arc mechanism 11 adopt the link joint structure 22 that the field is commonly used, also can be called the pinion rack structure, link joint structure 22 can set up two sets ofly, is located respectively the both ends of aluminium alloy square pipe 10 length, link joint structure 22 mainly comprises the link joint and the connecting rod of mutual rotation connection, and link joint structure 22 middle part is fixed on auxiliary frame 5 through intermediate strut 23, and link joint structure 22 both ends link chain, and the concrete structure of this part can refer to this applicant's prior application, and application number is 2019101028914.
The link joint with it is articulated through ball pivot 21 between the aluminium alloy side pipe 10, set up and carry the both ends of pulling link joint structure 22 at the arcing motor on 5 tops of auxiliary engine frame through the chain for aluminium alloy side pipe 10 both ends can form different radians, satisfy on the aluminium alloy side pipe 10 one end flexible axle roll table 9 level, the requirement that other end flexible axle roll table 9 becomes the arc.
And fixing plates for mounting the spherical hinges 21 are arranged at two ends of the aluminum profile square tube 10 in the length direction. The ball head of the spherical hinge 21 is arranged on the fixing plate, and the ball socket of the spherical hinge 21 is arranged on the connecting body 24 on the chain plate; or the ball head of the spherical hinge 21 is arranged on the connecting body 24 of the chain plate, and the ball socket of the spherical hinge 21 is arranged on the fixing plate.
The manual driving device arranged on the gradual change section can be used for emergency when a motor for driving the flexible shaft roller way to rotate breaks down or is powered off, the flexible shaft roller way is driven to rotate manually, and the glass is conveyed forwards continuously.
The pressing wheel mechanism arranged at the tail end of the gradual change section can press the upper surface of the glass through the pressing wheel to correct the shape of the formed glass.
When the gradual change section is prefabricated into an arc, a first flexible shaft roller way is kept horizontal, and then the first flexible shaft roller way is sequentially subjected to arc striking, so that the invention provides two realization structures, one is that an elastic body provided with the flexible shaft roller way is jacked up through a height adjusting mechanism, the flexible shaft roller way can be formed into an arc when the flexible shaft roller way is jacked up to different heights, and the other is a traditional toothed plate structure.
The technical scheme of the invention is further explained by taking a double-curved-surface glass toughening forming process as an example.
Fig. 7-8 are schematic diagrams of roller ways of different steps of hyperboloid glass toughening forming, in which only relevant roller ways are shown in order to clearly express the change of the flexible shaft roller ways 9 in each section and the transition connection between the transition section 2 and the forming toughening section 3, and other structures are omitted, and the roller ways are represented by respectively representing the end parts of the roller ways and the middle parts of the roller ways by different circles, and include ceramic roller ways 25 in the heating furnace 1, the transition section 2 and the flexible shaft roller ways 9 in the forming toughening section 3.
In fig. 7 and 8, the ceramic roller way 25 in the heating furnace 1 is a linear roller way, and thus one ceramic roller way 25 is indicated by one circle; in the gradual change section 2, as the flexible shaft roller ways 9 need to be transversely preformed into arcs, except that the first flexible shaft roller way 9 is a straight roller way and is represented by a circle, the other flexible shaft roller ways 9 are represented by an upper circle as the end part 26 of the flexible shaft roller way, and a lower circle as the middle part 27 of the flexible shaft roller way, and the gradual change section 2 and the forming tempering section 3 in fig. 7 are not butted, and the gradual change section 2 and the forming tempering section 3 in fig. 8 are butted; in the shaping tempering section 3, the flexible shaft roller way 9 is prefabricated into arcs in the transverse direction, so the representation method of the flexible shaft roller way 9 is the same as that of the gradual change section 2, the upper circle represents the end part 26 of the flexible shaft roller way, and the lower circle represents the middle part 27 of the flexible shaft roller way.
The method for forming the double-curved-surface toughened glass relates to the figures 7 and 8 and comprises the following steps:
firstly, a first flexible shaft roller way 9 (close to a heating furnace) in a transition section 2 and a ceramic roller way 25 in the heating furnace 1 are kept horizontal, transverse curvatures of a last flexible shaft roller way 9 (far away from the heating furnace) in the transition section 2 and the flexible shaft roller way 9 in a forming and tempering section 3 after transverse prefabrication into the arcs are kept consistent and are target curvatures through a gradual arc mechanism 11, other flexible shaft roller ways 9 in the transition section 2 are sequentially transited into the arcs according to a gradual mode, the arcing of the flexible shaft roller ways 9 is that the middle parts of the flexible shaft roller ways 9 are fixed and not higher than the ceramic roller way of the heating furnace, two sides of the middle parts are jacked up to different heights by corresponding height adjusting mechanisms, so that the prefabricated arcing is completed, at the moment, the end parts of the flexible shaft roller ways 9 are gradually raised in sequence along the glass moving direction, and the middle parts of the flexible shaft roller ways 9 are still level with the ceramic roller way 25 in the heating furnace 1;
secondly, transversely prefabricating the flexible shaft roller way 9 of the forming and tempering section 3 into an arc through a transverse arc changing mechanism in the forming and tempering section 3, and longitudinally prefabricating the flexible shaft roller way 9 into an arc through a longitudinal arc changing mechanism, so that a spherical surface capable of bearing glass is formed on the roller way surface of the forming and tempering section 3;
hereto, the flexible axle roll table of gradual change section 2 and shaping tempering section 3 accomplishes and prefabricates into the arc, as shown in fig. 7, there is the difference in height at the last flexible axle roll table of gradual change section 2 and the first flexible axle roll table of shaping tempering section 3, and the roll table face angle is also inequality, therefore, need rotatory gradual change section 2's auxiliary frame 5, and drop shaping tempering section 3, make gradual change section 2 last flexible axle roll table and the first flexible axle roll table of shaping tempering section 3 to dock smoothly, as shown in fig. 8, eliminate both heights, the difference of angle, so that glass passes through smoothly.
And finally, discharging the glass from the heating furnace 1, gradually forming along the gradual change section 2, and stably entering a forming tempering section 3 to finish the double curved surface forming and blowing tempering of the glass.
In the method, the flexible shaft roller ways 9 of the forming tempering section 3 are integrally preformed into arcs in two directions of vertical and horizontal directions, the obtained roller way surfaces are spherical surfaces, in the actual production, the flexible shaft roller ways 9 at the inlet side or the outlet side of the forming tempering section 3 can be only preformed into arcs in two directions of vertical and horizontal directions, the gradual change section 2 adopts the horizontal preformed arcs of the flexible shaft roller ways 9, at the moment, the roller way surfaces of the gradual change section 2 are rotated and matched with the lifting of the forming tempering section 3, so that the roller way surfaces of the two can be smoothly and stably butted, and then the tempering forming of the glass is completed according to the conventional operation.
In the above-mentioned various toughened glass's shaping mode, after the flexible axle roll table 9 that becomes the shaping tempering section 3 accomplished corresponding prefabrication become the arc, the air-grid on shaping tempering section 3 also needs to prefabricate into the arc, accessible corresponding arcing mechanism prefabricates into the arc to the air-grid. The upper air grid in the forming tempering section 3 is prefabricated into an arc in the transverse direction, or the upper air grid in the forming tempering section 3 is prefabricated into an arc in the transverse direction and the longitudinal direction.
In the above embodiment, the shaped tempering section 3 includes three tempering section units with the same structure and connected in sequence as shown in fig. 1, so as to adapt to the size of the ultra-long glass. Therefore, in practical implementation, the constituent units of the shaped tempering section 3 can be selected according to the glass plate width, and when the shaped tempering section 3 is composed of a plurality of constituent units, the description of the shaped tempering section 3 in the present invention is directed to the whole shaped tempering section 3, not to a single constituent unit.
The above embodiments are only intended to illustrate the technical solution of the present invention and not to limit the same, and it should be understood by those of ordinary skill in the art that the specific embodiments of the present invention can be modified or substituted with equivalents with reference to the above embodiments, and any modifications or equivalents without departing from the spirit and scope of the present invention are within the scope of the claims to be appended.
Claims (6)
1. A bent glass toughening forming method is characterized by comprising the following steps:
step one, adjusting a gradual change arc forming mechanism (11) of a gradual change section (2) to enable a flexible shaft roller way (9) of the gradual change section (2) to gradually perform arc forming: the flexible shaft roller way is prefabricated into a front arc and a rear arc in a gradual change manner, and the axial middle part of the flexible shaft roller way is always in the same plane along the glass conveying direction; after the flexible shaft roller way is gradually prefabricated into an arc, two end parts of the flexible shaft roller way are gradually lifted along the glass conveying direction;
adjusting a forming arc-changing mechanism of the forming tempering section (3) to longitudinally prefabricate a plurality of flexible shaft roller ways (9) at the inlet side of the forming tempering section (3) into an arc;
rotating the roller way surface of the gradual change section (2) by taking the central axis of a first flexible shaft roller way in a linear state in the gradual change section as an axis, and matching with the roller way surface of the lifting forming tempering section (3) to realize the stable butt joint of the roller way surface of the gradual change section (2) and the roller way surface of the forming tempering section (3);
and fourthly, feeding the glass into a heating furnace (1), heating to a softening state, discharging, enabling the discharged glass to enter a gradual change section (2), gradually changing the glass into an arc through a flexible shaft roller way (9) which is gradually changed and prefabricated into the arc, then entering a forming tempering section (3), finally forming and tempering, and finishing the manufacture of the bent tempered glass.
2. The method for forming a tempered bent glass as claimed in claim 1, wherein in the first step, the flexible shaft roller table of the gradual transition section (2) is pre-arc-formed by gradual transition in the transverse direction by a gradual transition arc-forming mechanism.
3. The method for forming tempered bent glass as claimed in claim 2, wherein in the second step, the forming arc-changing mechanism comprises a transverse arc-changing mechanism and a longitudinal arc-changing mechanism, the flexible shaft roller ways (9) of the forming tempering section (3) are preformed into an arc in the transverse direction through the transverse arc-changing mechanism, and the plurality of flexible shaft roller ways (9) positioned at the inlet side or the outlet side of the forming tempering section (3) are preformed into an arc in the longitudinal direction through the longitudinal arc-changing mechanism, so that the roller way surfaces at the inlet side or the outlet side of the forming tempering section (3) are preformed into spherical surfaces for bearing glass.
4. The method for tempering and forming the bent glass according to claim 2, wherein in the second step, the forming arc varying mechanism comprises a transverse arc varying mechanism and a longitudinal arc varying mechanism, and the flexible shaft roller way (9) of the forming tempering section (3) is preformed into an arc in the transverse direction and the longitudinal direction respectively through the transverse arc varying mechanism and the longitudinal arc varying mechanism, so that the roller way surface of the forming tempering section (3) forms a spherical surface for bearing the glass.
5. The curved glass tempering forming method according to any one of claims 3 or 4, wherein in step two, said upper wind fence in said shaped tempering section (3) is prefabricated into an arc in transverse direction, or said upper wind fence in said shaped tempering section (3) is prefabricated into an arc in both transverse direction and longitudinal direction.
6. The method for tempering and forming the bent glass according to claim 1, wherein: when the flexible shaft roller ways (9) of the gradual change section (2) are transversely prefabricated into an arc, the first flexible shaft roller way is parallel to the roller way of the heating furnace (1), and the transverse curvature of the last flexible shaft roller way is the same as that of the flexible shaft roller ways (9) of the forming tempering section (3) after the arc is transversely prefabricated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010177359.1A CN111453978B (en) | 2020-03-13 | 2020-03-13 | Bent glass toughening forming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010177359.1A CN111453978B (en) | 2020-03-13 | 2020-03-13 | Bent glass toughening forming method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111453978A CN111453978A (en) | 2020-07-28 |
| CN111453978B true CN111453978B (en) | 2023-03-24 |
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| CN111423103B (en) * | 2020-03-13 | 2022-08-16 | 洛阳兰迪玻璃机器股份有限公司 | Curved glass flexible shaft bending and tempering forming method |
| CN111348820B (en) * | 2020-03-13 | 2023-05-26 | 洛阳兰迪玻璃机器股份有限公司 | Rotary type transition section for bent glass forming and tempering forming equipment |
| CN112062453A (en) * | 2020-09-30 | 2020-12-11 | 索奥斯(广东)玻璃技术股份有限公司 | Reliable and stable glass tempering upper roller structure for forming |
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