CN107827342A - Shaping glass sheets toughening method and system - Google Patents
Shaping glass sheets toughening method and system Download PDFInfo
- Publication number
- CN107827342A CN107827342A CN201710947524.5A CN201710947524A CN107827342A CN 107827342 A CN107827342 A CN 107827342A CN 201710947524 A CN201710947524 A CN 201710947524A CN 107827342 A CN107827342 A CN 107827342A
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- Prior art keywords
- air
- air door
- shaping
- tempering
- glass plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- C03B27/012—Tempering or quenching glass products by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
Shaping glass sheets toughening method and system, this method includes plate glass the heating stepses in heating furnace, and shaping tempering section successively carries out forming step and tempering step, wherein, between the forming step and the tempering step, the step of being precooled to the glass plate after shaping is additionally provided with；By corresponding system make glass plate enter tempering step before, glass plate is precooled using low-pressure air, prevent glass plate produce optical distortion.
Description
Technical field
The present invention relates to glass tempering moulding process, particularly relates to shaping glass sheets toughening method and system.
Background technology
In the prior art, the curved tempering apparatus of single-curved surface generally includes a platform, heating furnace, shaping tempering section and bottom sheet platform.
After glass plate is heated to soft state in heating furnace, quick tapping enters shaping tempering section.Whether the curved tempering apparatus of hard axle
Or the curved tempering apparatus of flexible axle, glass plate are formed means flex into the shape of setting, Ran Houtong first in tempering section is molded
The cooling wind for crossing blower fan blowout quickly cools down progress tempering processing.In order to realize the effect of glass plate tempering processing, wind is cooled down
The blast for acting on glass pane surface must be sufficiently large（Such as 8000Pa to 14000Pa）, now, the still glass in soft state
Glass plate is very easy to be produced optical distortion by high pressure wind action, has had a strong impact on the quality of safety glass.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of shaping glass sheets toughening method and system, after shaping, steel
Added before changing and precool step, prevent glass plate from producing optical distortion.
To realize above-mentioned technical purpose, used technical scheme is：Shaping glass sheets toughening method, this method include flat
Heating stepses of the glass sheet in heating furnace, and the shaping successively carried out in tempering section is molded after the heating step is set
Step and tempering step, wherein, between the forming step and the tempering step, it is additionally provided with and the glass plate after shaping is entered
Capable precooling step；It is described precooling step be：Before glass plate enters tempering step, glass plate is entered using low-pressure air
Row precools, and the pressure that the low-pressure air acts on glass pane surface acts on glass pane surface less than cooling wind in tempering step
Pressure.
Further, described precooling step mesolow wind acts on glass pane surface duration as 0.2 second to 3
Second.
Further, the pressure that described precooling step mesolow wind acts on glass pane surface is 50Pa to 3000Pa.
Further, the air door in the air pipeline being connected with shaping tempering section is arranged on by control, makes air pipeline
Part is open-minded, and glass plate is precooled so as to form low-pressure air.
Further, described air pipeline is provided with an air door, after glass plate completes forming step, opens air door extremely
First position, glass plate is precooled；Complete after precooling step, open air door to the second place, glass plate is carried out
Tempering；Opening amplitude of the air door in first position is less than the opening amplitude in the second place.
Further, described air pipeline is provided with least two air doors, after glass plate completes forming step, opens wind
Door precools to the first working condition to glass plate；Complete after precooling step, opening air door to the second working condition,
Tempering is carried out to glass plate；Air door is less than the opening quantity in the second working condition in the opening quantity of the first working condition.
Further, by driving air door rotation to open air door.
Further, by driving air door to be moved along perpendicular to the direction of air pipeline axis to open air door.
Shaping glass sheets tempering system, including the heating furnace set gradually and shaping tempering section, shaping tempering section include supplying
Wind apparatus, air collecting box and shaping mechanism, air collecting box and air supply device are connected by air pipeline, in addition to：
Air door, it is arranged in air pipeline, for being opened or closed the air pipeline, glass plate after shaping enters tempering
Before step, produce low-pressure air and glass plate is precooled；
Drive mechanism, for driving air door to act, control the closing of air door and open amplitude, realize that the portion of air pipeline separates
It is logical or all open-minded；
Encoder, it is connected with the rollgang in shaping mechanism, for monitoring motion bit confidence of the glass plate on rollgang
Breath；
Control unit, it is connected respectively with encoder and drive mechanism electric signal, for receiving the sheet position of encoder feedback
Information, and drive mechanism is issued instructions to, to control the closing of air door and open amplitude.
Further, an air door is provided with described air pipeline, drives air door to rotate by drive mechanism, with control
The closing of air door and opening amplitude.
Further, an air door is provided with described air pipeline, air door is driven along perpendicular to logical by drive mechanism
The direction motion of air pipe line axis, to control the closing of air door and open amplitude.
Further, at least two air doors are provided with described air pipeline, each air door is operated alone by drive mechanism,
Control the opening and closing of each air door.
Further, described drive mechanism is double stroke cylinder or servo cylinder.
Further, described air pipeline is provided with two air doors, including small air door and big air door, small air door perpendicular to
The reverse sectional area of air pipeline axis is less than big air door；After glass plate is being molded tempering section brake forming, pass through driving machine
Structure opens small air door, and glass plate is precooled using low-pressure air；Complete after precooling, strong wind is opened by drive mechanism
Door, tempering processing is carried out to glass plate.
Present invention has the advantages that：The invention provides a kind of shaping glass sheets toughening method and tempering system is molded,
During single surface glass shaping steel process, by between forming step and tempering step, setting to the glass after shaping
The step of plate is precooled, the still glass plate in soft state is set to be precooled by low-pressure air, to glass pane surface
Pre-setting is carried out, so as to improve the intensity of glass pane surface, efficiently avoid in tempering processing procedure, due to high-pressure blast
Effect glass pane surface is produced optical distortion, and then improve the product quality of curved tempered glass.Present invention also offers
Realize the shaping tempering system of the above method.
Brief description of the drawings
Fig. 1 is the structural representation of present system；
Schematic diagram when air door is closed in Fig. 2 a embodiments 2；
Air door is opened to the schematic diagram of first position in Fig. 2 b embodiments 2；
Air door is opened to the schematic diagram of the second place in Fig. 2 c embodiments 2；
Schematic diagram when air door is closed in Fig. 3 a embodiments 3；
Air door is opened to the schematic diagram of first position in Fig. 3 b embodiments 3；
Air door is opened to the schematic diagram of the second place in Fig. 3 c embodiments 3；
Schematic diagram when air door is closed in Fig. 4 a embodiments 4；
Schematic diagram when small air door is opened in Fig. 4 b embodiments 4；
Schematic diagram when big air door is opened in Fig. 4 c embodiments 4；
Fig. 5 is the drive mechanism attachment structure schematic diagram of Unscrew air door of the present invention；
In figure：1st, heating furnace, 2, upper piece platform, 3, bottom sheet platform, 4, shaping tempering section, 5, air supply device, 6, air collecting box, 7, air door,
8th, air pipeline, 9, drive mechanism, 9-1, cylinder, 9-2, swing arm, 10, air pipeline axis, 11, small air door, 12, big air door.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the present invention is described in detail.
Embodiment 1
Shaping glass sheets toughening method, this method includes plate glass the heating stepses in heating furnace, and is arranged on heating
The forming step and tempering step successively carried out in tempering section is molded after step, wherein, in the forming step and described
Between tempering step, the precooling step carried out to the glass plate after shaping is additionally provided with；It is described precooling step be：In glass plate
Into before tempering step, glass plate is precooled using low-pressure air, the low-pressure air acts on the pressure of glass pane surface
Power is less than the pressure that cooling wind in tempering step acts on glass pane surface.
Low-pressure air acts on glass pane surface duration as 0.2 second to 3 seconds.
The pressure that low-pressure air acts on glass pane surface is 50Pa to 3000Pa.
It is different according to glass plate thickness, pressure and the time of glass pane surface are acted on from suitable low-pressure air, for example,
For the blast of the low-pressure air used for the thick glass plates of 6mm, during precooling for 1000Pa, it is lasting that it acts on glass pane surface
Time is 0.5 second, and the blast used during tempering processing is 2000Pa；Adopted for the thick glass plates of 5mm, during precooling
The blast of low-pressure air is 800Pa, and it acted on glass pane surface duration as 1 second, and adopted during tempering processing
Blast is 3000Pa；For 50Pa, it is acted on the blast of the low-pressure air used for the thick glass plates of 4mm, during precooling
Glass pane surface duration is 2 seconds, and the blast used during tempering processing is 7200Pa.
Air door in the air pipeline being connected with shaping tempering section is arranged on by control, separates air pipeline portion
It is logical, glass plate is precooled so as to form low-pressure air.
When air pipeline is provided with an only air door, after glass plate completes forming step, air door is opened to first position,
Glass plate is precooled；Complete after precooling step, wind sector keeps working condition constant, opens air door to second
Put, tempering is carried out to glass plate；Opening amplitude of the air door in first position is less than the opening amplitude in the second place, is beaten with air door
The increase of open-width degree reduces the pressure size that change wind-force acts on glass pane surface.For example, air door is in the present embodiment
The opening amplitude of one position is 20%；Now, the cooling wind of blower fan blowout produces low-pressure air after air grid, utilizes low-pressure air pair
Glass plate is precooled；Afterwards, continue to drive air door to rotate to an angle to open air door to the second place, air door is second
The opening amplitude of position is 100%（I.e. air door is opened completely）.
When air pipeline is provided with least two air doors, after glass plate completes forming step, air door is opened to the first work
Make state, glass plate is precooled；Complete after precooling step, the wind-force that wind sector provides is constant, opens air door extremely
Second working condition, tempering is carried out to glass plate；Air door is less than in the second working condition in the opening quantity of the first working condition
Opening quantity, open increasing or decreasing for quantity with air door and change wind-force and act on the pressure size of glass pane surface.
In the present embodiment, by driving air door rotation to open air door, it is, of course, also possible to by drive air door along perpendicular to
Move to open air door in the direction of air pipeline axis.
Embodiment 2
Shaping glass sheets tempering system, including the heating furnace 1 set gradually and shaping tempering section 4, shaping tempering section 4 include air feed
Device 5, air collecting box 6 and shaping mechanism, air collecting box 6 is interior to be provided with shaping mechanism, and air collecting box 6 and air supply device 5 pass through air pipeline 8
Connection, shaping mechanism include being used for the rollgang for conveying glass plate, the air grid blown to glass plate upper and lower surface, in addition to：
Air door 7, it is arranged in air pipeline 8, for being opened or closed the air pipeline 8, glass plate after shaping enters
Before tempering step, produce low-pressure air and glass plate is precooled；
Drive mechanism 9, for driving air door 7 to act, control the closing of air door 7 and open amplitude, realize the portion of air pipeline 8
It is separately logical or all open-minded；
Encoder, it is connected with the rollgang in shaping mechanism, for monitoring motion bit confidence of the glass plate on rollgang
Breath；
Control unit, it is connected respectively with encoder and the electric signal of drive mechanism 9, for receiving the sheet position of encoder feedback
Information, and drive mechanism is issued instructions to, to control the closing of air door and open amplitude.
As shown in Fig. 2 a to 2c, an air door 7 is provided with air pipeline 8, drives air door 7 to rotate by drive mechanism 9,
To control the closing of air door and open amplitude, maximum open shape is in when air door 7 is completely vertical with the axis of air pipeline 8
State.Air door 7 is fixed on rotating shaft（Not shown in figure）On, rotated by the drive shaft of drive mechanism 9 so as to drive air door to rotate.Drive
Motivation structure 9 can use the motor being connected with rotating shaft, and preferably by structure as shown in Figure 5, drive mechanism 9 includes cylinder 9-
1 and swing arm 9-2, swing arm 9-2 one end and cylinder 9-1 piston rod are hinged, and its other end is fixedly connected with air door 7.
Embodiment 3
The shaping glass sheets tempering system of the present embodiment is substantially the same manner as Example 2, and difference is：Such as Fig. 4 a to 4c institutes
Show, an air door 7 is provided with air pipeline 8, air door is driven along perpendicular to the direction of the axis of air pipeline 8 by drive mechanism
Motion, to control the closing of air door and open amplitude.Fig. 3 b are that air door 7 is opened to the schematic diagram of first position, and Fig. 3 c are wind
Door 7 is opened to the schematic diagram of the second place, and when this door 7 is opened to the second place, air pipeline 8 is all open-minded.Drive mechanism
The cylinder 9-1 being directly connected to air door 7 can be used.
The cylinder 9-1 of the present embodiment is double stroke cylinder, and it has two operating positions, and air door can be controlled to realize two
Different opening amplitudes；It is, of course, also possible to using servo cylinder, the opening amplitude of air door can be arbitrarily controlled.
Embodiment 4
The shaping glass sheets tempering system of the present embodiment is substantially the same manner as Example 2, and difference is：Set in air pipeline 8
At least two air doors 7 are equipped with, all air doors 7 are combined completely is closed to air pipeline 8, often opens a wind
Door 7 is open-minded by the part for realizing air pipeline 8, and each air door 7 is operated alone by drive mechanism 9 respectively, controls each air door 7
Open and close.The opening form of each air door 7 can use Unscrew or motion is beaten perpendicular to the direction of the axis of air pipeline 8
Open.
As shown in Figs. 4a-c by taking two air doors 7 as an example, air pipeline is provided with two air doors, including the He of small air door 11
Big air door 12, small air door 11 are less than big air door 12 in the sectional area perpendicular to the direction of air pipeline axis 10；As shown in Figure 4 b, when
Glass plate is opened small air door 11 by drive mechanism, entered using low-pressure air to glass plate after tempering section brake forming is molded
Row precools；As illustrated in fig. 4 c, complete after precooling, big air door 12 is opened by drive mechanism, glass plate is carried out at tempering
Reason.
The drive mechanism 9 of the present embodiment can use common single file stroke cylinder.
Illustrate the course of work of shaping glass sheets tempering system of the present invention by taking embodiment 2 as an example below：
As shown in Fig. 2 a, 2b, 2c, after glass plate is being molded tempering section brake forming, pass through drive mechanism（Such as two-pass gas
Cylinder）Driving air door rotates to an angle to open air door to first position, and opening amplitude of the air door in first position is 20%；This
When, the cooling wind of blower fan blowout produces low-pressure air after air grid, glass plate is precooled using low-pressure air, to improve glass
The intensity on glass plate surface；Low-pressure air continuous action is after glass pane surface 0.5 to 3 second, drive mechanism（Such as double stroke cylinder）
Continue to drive air door to rotate to an angle to open air door to the second place, opening amplitude of the air door in the second place is 100%
（I.e. air door is opened completely）, now, the cooling wind of blower fan blowout produces high-pressure blast after air grid, to complete the tempering of glass plate
Processing.
Claims (14)
1. shaping glass sheets toughening method, it is characterised in that this method includes plate glass the heating stepses in heating furnace, with
And the forming step and tempering step that are successively carried out in tempering section is molded after the heating step are set, wherein, it is described into
Between type step and the tempering step, the precooling step carried out to the glass plate after shaping is additionally provided with；The precooling is stepped back
Suddenly it is：Before glass plate enters tempering step, glass plate is precooled using low-pressure air, the low-pressure air acts on glass
The pressure on glass plate surface is less than the pressure that cooling wind in tempering step acts on glass pane surface.
2. shaping glass sheets toughening method as claimed in claim 1, it is characterised in that：Described precooling step mesolow wind
Glass pane surface duration is acted on as 0.2 second to 3 seconds.
3. shaping glass sheets toughening method as claimed in claim 1, it is characterised in that：Described precooling step mesolow wind
The pressure for acting on glass pane surface is 50Pa to 3000Pa.
4. shaping glass sheets toughening method as claimed in claim 1, it is characterised in that：It is arranged on and shaping tempering by control
The air door in air pipeline that section is connected, makes air pipeline part open-minded, and precooling is carried out to glass plate so as to form low-pressure air
But.
5. shaping glass sheets toughening method as claimed in claim 4, it is characterised in that：Described air pipeline is provided with one
Air door, after glass plate completes forming step, air door is opened to first position, glass plate is precooled；Complete to precool
After step, air door is opened to the second place, tempering is carried out to glass plate；Opening amplitude of the air door in first position is less than second
The opening amplitude of position.
6. shaping glass sheets toughening method as claimed in claim 4, it is characterised in that：Described air pipeline is provided with least
Two air doors, after glass plate completes forming step, air door are opened to the first working condition, glass plate is precooled；It is complete
Into after precooling step, air door is opened to the second working condition, tempering is carried out to glass plate；Air door is beaten the first working condition
Quantity is opened less than the opening quantity in the second working condition.
7. the shaping glass sheets toughening method as described in claim 4,5 or 6, it is characterised in that：By drive air door rotation with
Open air door.
8. the shaping glass sheets toughening method as described in claim 4,5 or 6, it is characterised in that：By driving air door along vertically
Moved in the direction of air pipeline axis to open air door.
9. shaping glass sheets tempering system, including the heating furnace set gradually（1）With shaping tempering section（4）, it is molded tempering section（4）
Including air supply device（5）, air collecting box（6）And shaping mechanism, air collecting box（6）And air supply device（5）Pass through air pipeline（8）Even
Connect, it is characterised in that also include：
Air door（7）, it is arranged on air pipeline（8）It is interior, for being opened or closed the air pipeline（8）, glass after shaping
Plate enters before tempering step, produces low-pressure air and glass plate is precooled；
Drive mechanism（9）, for driving air door（7）Action, control air door（7）Closing and open amplitude, realize ventilation duct
Road（8）Part open or all it is open-minded；
Encoder, it is connected with the rollgang in shaping mechanism, for monitoring motion bit confidence of the glass plate on rollgang
Breath；
Control unit, respectively with encoder and drive mechanism（9）Electric signal connects, for receiving the glass plate position of encoder feedback
Confidence ceases, and issues instructions to drive mechanism, to control the closing of air door and open amplitude.
10. shaping glass sheets tempering system as claimed in claim 9, it is characterised in that：Described air pipeline（8）Interior setting
There is an air door（7）, pass through drive mechanism（9）Drive air door（7）Rotation, to control the closing of air door and open amplitude.
11. shaping glass sheets tempering system as claimed in claim 9, it is characterised in that：Described air pipeline（8）Interior setting
There is an air door, pass through drive mechanism（9）Air door is driven along perpendicular to air pipeline（8）The direction motion of axis, to control wind
The closing of door and opening amplitude.
12. shaping glass sheets tempering system as claimed in claim 9, it is characterised in that：Described air pipeline（8）Interior setting
There are at least two air doors（7）, each air door（7）By drive mechanism（9）It is operated alone, controls each air door（7）Beat on and off
Close.
13. the shaping glass sheets tempering system as described in claim 9,10 or 11, it is characterised in that：Described drive mechanism
（9）For double stroke cylinder or servo cylinder.
14. shaping glass sheets tempering system as claimed in claim 12, it is characterised in that：Described air pipeline（8）Set
There are two air doors, including small air door（11）With big air door（12）, small air door（11）Perpendicular to air pipeline axis（10）Direction
Sectional area be less than big air door（12）；After glass plate is being molded tempering section brake forming, pass through drive mechanism（9）Open small wind
Door（11）, glass plate is precooled using low-pressure air；Complete after precooling, big air door is opened by drive mechanism（12）,
Tempering processing is carried out to glass plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947524.5A CN107827342A (en) | 2017-10-12 | 2017-10-12 | Shaping glass sheets toughening method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710947524.5A CN107827342A (en) | 2017-10-12 | 2017-10-12 | Shaping glass sheets toughening method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107827342A true CN107827342A (en) | 2018-03-23 |
Family
ID=61647960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710947524.5A Pending CN107827342A (en) | 2017-10-12 | 2017-10-12 | Shaping glass sheets toughening method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107827342A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5978938A (en) * | 1982-10-28 | 1984-05-08 | Central Glass Co Ltd | Method for tempering plate glass |
| CN103896482A (en) * | 2014-04-11 | 2014-07-02 | 洛阳兰迪玻璃机器股份有限公司 | Flat glass toughening method and device |
-
2017
- 2017-10-12 CN CN201710947524.5A patent/CN107827342A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5978938A (en) * | 1982-10-28 | 1984-05-08 | Central Glass Co Ltd | Method for tempering plate glass |
| CN103896482A (en) * | 2014-04-11 | 2014-07-02 | 洛阳兰迪玻璃机器股份有限公司 | Flat glass toughening method and device |
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Application publication date: 20180323 |