CN107352780B - Glass processing device and processing method - Google Patents
Glass processing device and processing method Download PDFInfo
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- CN107352780B CN107352780B CN201710590605.4A CN201710590605A CN107352780B CN 107352780 B CN107352780 B CN 107352780B CN 201710590605 A CN201710590605 A CN 201710590605A CN 107352780 B CN107352780 B CN 107352780B
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- 239000011521 glass Substances 0.000 title abstract description 122
- 238000012545 processing Methods 0.000 title abstract description 59
- 238000003672 processing method Methods 0.000 title abstract description 6
- 238000013003 hot bending Methods 0.000 abstract description 12
- 238000005452 bending Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 description 42
- 238000007664 blowing Methods 0.000 description 26
- 230000007246 mechanism Effects 0.000 description 13
- 238000001816 cooling Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 230000035882 stress Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005496 tempering Methods 0.000 description 3
- 239000005341 toughened glass Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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Classifications
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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
-
- 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
- C03B27/044—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position
- C03B27/0442—Tempering or quenching glass products using gas for flat or bent glass sheets being in a horizontal position for bent glass sheets
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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
The invention discloses a glass processing device and a processing method, wherein the glass processing device comprises an upper unit, a lower unit, a processing unit and a temperature unit, the processing unit is in data connection with the upper unit, the lower unit and the temperature unit, the processing unit controls the upper unit, the lower unit and the temperature unit to process glass original sheets, and the temperature unit is connected with the upper unit and the lower unit through pipelines; according to the invention, the forming device is used for processing and hot bending the glass sheet, so that the operation process of replacing the forming original with different bending radians is avoided, and the glass sheet can be hot bent into glass finished products with different bending radians through the forming device, so that the processing cost is reduced.
Description
Technical Field
The invention relates to the field of glass processing, in particular to a glass processing device and a processing method.
Background
After the plate glass is formed, the product meeting the requirements is produced by utilizing the properties of the glass. The glass can be bent into a required shape by utilizing the characteristic of fixing the melting point of the glass object; tempered glass is produced by creating a temperature gradient between the quenched surface and the interior and, under suitable operating conditions, achieving a desired partial uniform distribution of surface-to-interior stresses. The hot bending glass can change the use purpose of the glass, and the two pieces of toughened glass can greatly improve the bending strength, the impact strength and the thermal stability of the glass, so that the strength of the glass is enhanced.
The existing bending process of plate glass is that the glass with cut size is placed on a mould designed according to the bending radian, and is put into a heating furnace, heated to softening temperature to soften the glass, and then annealed to obtain the hot bent glass, and the tempering of the glass is generally that the high-temperature glass is rapidly cooled to normal temperature state to generate residual stress in the thickness direction of the glass, and the surface forms compressive stress to toughen the glass.
When the glass is subjected to hot bending and tempering, the glass is generally processed by using the die with the bending radian in a fixed state, and the die with different bending radians is needed for manufacturing the hot-bent tempered glass with different bending radians, so that the production cost is greatly increased.
In view of the above-mentioned drawbacks, the inventors of the present invention have finally obtained the present invention through a long period of research and practice.
Disclosure of Invention
In order to solve the technical defects, the technical scheme adopted by the invention is to provide a glass processing device, which comprises an upper unit, a lower unit, a processing unit and a temperature control unit, wherein the processing unit is in data connection with the upper unit, the lower unit and the temperature control unit, the processing unit controls the upper unit, the lower unit and the temperature control unit to process glass raw sheets, and the temperature control unit is connected with the upper unit and the lower unit through pipelines.
Preferably, the lower unit comprises a first wind control device and a first control mechanism, the upper unit comprises a second wind control device and a second control mechanism, the first wind control device is connected with the first control mechanism, the second wind control device is connected with the second control mechanism, the first control mechanism controls the first wind control device to move, and the second control mechanism controls the second wind control device to move.
Preferably, the lower unit further comprises a supporting device and a forming device, the forming device comprises a deformation piece and a fixing device, the fixing device is symmetrically arranged on the supporting device, and the fixing device is used for fixing and adjusting the deformation piece.
Preferably, the deformation piece is a sheet-shaped object and has a certain heat conduction effect, and the deformation piece is used for forming the radian shape of the lower surface of the glass sheet.
The preferred, the temperature control unit includes heating bellows, refrigeration bellows and air-blower, the one end of heating bellows pass through the pipeline simultaneously with the upper portion unit with lower part unit connection, heating bellows with the refrigeration bellows other end pass through the pipeline with the air-blower connection, it is right to heat bellows the air that the air-blower was bloated heats, refrigeration bellows is right the air that the air-blower was bloated cools down.
Preferably, a processing method of the glass processing device includes the steps of:
s1, inputting the shape data of the glass after hot bending into the processing unit by the user, and adjusting the lower unit by the processing unit through the data;
s2, placing the glass original sheet on the lower unit through a grabbing device, and processing the glass original sheet by the lower unit and the upper unit through the processing unit instructions
And S3, taking out the glass original sheet through the grabbing device.
Preferably, the step S2 specifically includes: placing a glass original sheet on the supporting device through a grabbing device, blowing and heating the glass original sheet through the first air control device and the second air control device, and regulating and controlling the temperature of heated air by the processing unit in the heating process; when the glass original sheet is heated to a softening state, the glass original sheet is thermally bent into a required shape under the action of the first air control device and the second air control device; after the shape of the original glass sheet is kept for a period of time by using the heated air, the original glass sheet is blown by the first air control device and the second air control device to be cooled, so that the original glass sheet is tempered.
Preferably, in step S2, the processing unit controls the temperature of the heated air during the heating process, and the specific calculation formula of the used heated air temperature T after the ith measurement is:
wherein T isB0Is the temperature, T, of the glass blank in the initial stateBiThe temperature of the glass original sheet at the ith measurement, t is the heating time from the start of heating to the ith measurement, tΔThe interval time of two adjacent measurements is beta is a thermal power coefficient, D is the thickness of the glass original sheet, TBIs the softening temperature of the glass.
Preferably, the step S1 specifically includes: the user will process the relevant data input of back glass shape and transmit extremely in the processing unit, the processing unit is through right data are handled, issue the instruction and reach fixing device, through fixing device is right the deformation piece is adjusted, makes the required cambered surface of deformation piece formation.
Compared with the prior art, the invention has the beneficial effects that: 1, heating and cooling the glass sheet through the first air control device and the second air control device, and simultaneously realizing hot bending and toughening of the glass, so that the operation of carrying and moving the glass sheet is reduced, the processing is simplified, and the processing cost and the processing time are reduced; 2. the glass sheet is processed and hot-bent by the forming device, so that the operation process of replacing the forming original with different bending radians is avoided, the glass sheet can be hot-bent into glass finished products with different bending radians by the forming device, and the processing cost is reduced; 3. the processing unit analyzes parameters of different bending radians and controls the upper unit and the lower unit, so that the processing operation is simpler; 4. through the control of processing unit to the temperature in the course of working, make the heating of glass original sheet or cooling are in steerable state, avoid because of heating or the glass damage that the cooling causes too fast.
Drawings
FIG. 1 is a block diagram of a glass processing apparatus according to the present invention;
FIG. 2 is a structural view showing an operating state of the glass processing apparatus according to the present invention.
The figures in the drawings represent:
1-an upper unit; 2-a lower unit; 3-a processing unit; 4-a temperature control unit; 11-a second wind control device; 21-a first wind control device; 22-a support means; 23-a forming device; 41-heating wind box; 42-a refrigeration bellows; 43-blower.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Example one
The present invention relates to a glass processing apparatus, the structure of which is shown in fig. 1 and 2, and which includes an upper unit 1, a lower unit 2, a processing unit 3, and a temperature control unit 4.
The processing unit 3 collects and processes related data, the upper unit 1, the lower unit 2 and the temperature unit 4 are controlled to process the glass sheet through issuing instructions, the temperature unit 4 is connected with the upper unit 1 and the lower unit 2 through a pipeline, and the upper unit 1 and the lower unit 2 complete the hot bending and toughening of the glass through heating, cooling and forming effects on the glass sheet; the temperature unit 4 controls the heating and cooling effects of the upper unit 1 and the lower unit 2 by heating or cooling air.
The temperature unit 4 comprises a heating air box 41, a cooling air box 42 and a blower 43, wherein one end of the heating air box 41 and one end of the cooling air box 42 are simultaneously connected with the upper unit 1 and the lower unit 2 through pipelines, the other end of the heating air box 41 and the other end of the cooling air box 42 are simultaneously connected with the blower 43 through pipelines, and the blower 43 is used for blowing air into the heating air box 41 and the cooling air box 42; the blower 43 is provided with a switch, and the air blower 43 is controlled to blow air into the heating air box 41 or the cooling air box 42 through the switch; the heating air box 41 heats the air blown by the air blower 43, and transmits the heated air to the upper unit 1 and the lower unit 2 through a pipeline, and the cooling air box 42 cools the air blown by the air blower 43 and transmits the cooled air to the upper unit 1 and the lower unit 2 through a pipeline.
The lower unit 2 comprises a first wind control device 21, a support device 22 and a forming device 23, and the upper unit 1 comprises a second wind control device 11.
The supporting device 22 is generally configured as a support for supporting the forming device 23, the support generally includes a framework formed by section steel columns, section steel beams, and the like, so that the support is integrally stable, and a steel plate is sealed on the entire outer side of the framework to form a cabinet support, so that the support is attractive in appearance and plays a role in protecting equipment inside the support.
Forming device 23 is including deformation and fixing device, the fixing device symmetry sets up on the strutting arrangement 22, fixing device is used for fixed regulation the deformation, the deformation is for can freely deforming and the poor sheet of ductility, has certain heat conduction effect, through control fixing device can adjust the symmetry between the fixing device deformation length. The first wind control device 21 blows air to the deformation piece, so that the deformation piece forms a certain cambered surface; through adjusting fixing device, make the cambered surface that the piece that warp formed changes and forms the curved surface shape that will reach after the former piece lower surface of glass is processed, the curved surface shape of the piece that warp is right the former piece of glass carries out the shaping operation. The glass processing device is suitable for forming glass with different curved surfaces by adjusting the fixing device, so that the processing cost is reduced, and the applicability of the glass processing device is high; processing unit 3 gives the instruction after to processing back glass curved surface radian parametric analysis fixing device, fixing device automatically regulated makes it is applicable to processing back glass curved surface radian to warp the piece, and processing operation is more simple, discovers in the course of working the former piece hot bending effect of glass is unsatisfactory, accessible control fixing device is direct right it adjusts to march to warp the piece to reach the hot bending effect of ideal.
The first air control device 21 comprises a first air blowing pipe, a first control mechanism and a first air switch; the second air control device 11 comprises a second blowpipe, a second control mechanism and a second air switch; the first control mechanism is connected with the first air blowing pipe and controls the spatial position of the first air blowing pipe, and the second control mechanism is connected with the second air blowing pipe and controls the spatial position of the second air blowing pipe; the first air blowing pipe is controlled to completely expand the deformation piece to form an ideal set radian through controlling the first control mechanism, and the second air blowing pipe is controlled to blow air perpendicular to the glass sheet to uniformly heat and stress the surface of the glass sheet; the first air switch and the second air switch are used for controlling the speed of air conveyed from the temperature unit 4 and controlling the wind speed and the wind pressure of the first wind blowing pipe and the second wind blowing pipe, so that the defect of wind spots caused by overlarge wind speed and wind pressure or the uneven heated stress of the glass original sheet caused by the undersize wind speed and wind pressure in the processing engineering are avoided.
The first air blowing pipe and the second air blowing pipe are connected with the temperature unit 4 through pipelines, and the first air blowing pipe and the second air blowing pipe are used for blowing out air heated or cooled by the temperature unit 4 to heat or cool the glass sheet.
Example two
The invention relates to a processing method of a glass processing device, which comprises the following steps:
s1, the user inputs the shape data of the glass after hot bending into the processing unit 3, and the processing unit 3 adjusts the lower unit 2 by processing the data;
s2, placing the glass original sheet on the lower unit 2 by a gripping device or a transportation device, and processing the glass original sheet by the lower unit 2 and the upper unit 1 through the processing unit command;
and S3, taking out the glass original sheet through a grabbing device or a conveying device.
Step S1 specifically is that the user inputs the relevant data of glass shape after processing through input module and transmits to in the processing unit, the processing unit is through right data are handled, issue the instruction and reach fixing device, it is right through fixing device the deformation piece is adjusted, makes the required cambered surface can be formed to the deformation piece.
Step S2 is specifically to place the glass original sheet on the supporting device 22 by a gripping device or a transportation device, turn on the blower 43, heat air by the heating air box 41 in the temperature unit 4, blow air by the first air blowing pipe and the second air blowing pipe to heat the glass original sheet, and regulate and control the temperature of air by the processing unit 3 during heating;
when the glass original sheet is heated for a certain time, the glass original sheet enters a softening state, the first control mechanism controls the position of the first air blowing pipe through an instruction of the processing unit 3, and the second control mechanism controls the position of the second air blowing pipe, so that the first air blowing pipe and the second air blowing pipe always keep a certain distance from the glass original sheet and are perpendicular to the glass original sheet; the glass original is thermally bent into a required shape through the blowing action of the deformation piece and the second blowing pipe;
after the hot air is used for keeping the hot bent shape of the glass original for a period of time, the heating air box 41 is closed, the refrigerating air box 42 is opened, the air blower 43 is controlled to blow air to the refrigerating air box 42, the air is cooled through the refrigerating air box 42, and the glass original is blown through the first air blowing pipe and the second air blowing pipe to cool the glass original so as to toughen the glass original.
EXAMPLE III
When the glass original sheet is heated, the temperature of the surface of the glass rises faster than that of the inside due to uneven heating, so that the temperature difference between the surface of the glass and the inside is generated, the thermal stress generated by the temperature gradient is surface compressive stress, the tensile stress exists in the inside, the hotter surface of the glass has the expansion tendency, and the inside of the glass resists the expansion tendency, so that the glass is cracked too early due to heating. Therefore, when the glass sheet is heated, the heating temperature needs to be controlled in order to ensure that the glass sheet reaches the softening temperature and complete the hot bending operation of the glass sheet.
The surface temperature of the glass sheet is measured once every time period, the time interval is generally 1-3S, the condition of the glass sheet in the processing process is guaranteed to be known in real time, and the heating temperature is adjusted through measuring the surface temperature of the glass sheet, so that the processing of the glass sheet is controllable.
The heating temperature T used after the ith measurement in the heating process is calculated by the formula
Wherein T isB0Is the temperature, T, of the glass blank in the initial stateBiThe temperature of the glass original sheet at the ith measurement, t is the heating time from the start of heating to the ith measurement, tΔThe interval time of two adjacent measurements is beta is a thermal power coefficient, D is the thickness of the glass original sheet, TBIs the softening temperature, final T, of the glassBiThe temperature to be reached is the softening temperature T of the glassBWhen the glass is softened, the softening temperature of the common silicate transparent glass is 550-750 ℃, but the heating temperature is generally designed to be 90-130 ℃ higher than the glass temperature in consideration of heat loss and uniformity and stability of the heating temperature, so the thermal power coefficient beta is generally 1.2.
For the thickness D of the glass, in order to uniformly heat thicker glass and ensure that the temperature difference between the surface of the glass and the internal temperature of the glass is small, the heating temperature needs to be reduced, the total heating time is relatively prolonged, and the thickness D is inversely proportional to the heating temperature T; when the thickness of the glass is less than 4mm, the furnace temperature is increased to ensure that the hot bending tempering effect of the glass is better, and the heating temperature required by thinner glass is higher.
The control of the heating temperature of the glass is guaranteed through the calculation of the formula, the damage of the glass caused by uneven heating and overlarge heating temperature difference is avoided, meanwhile, the stable temperature rise of the glass is realized, the hot bending and toughening treatment is carried out on the glass, and the working efficiency of glass processing is guaranteed.
The foregoing is merely a preferred embodiment of the invention, which is intended to be illustrative and not limiting. It will be understood by those skilled in the art that various changes, modifications and equivalents may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. The glass processing device is characterized by comprising an upper unit, a lower unit, a processing unit and a temperature control unit, wherein the processing unit is in data connection with the upper unit, the lower unit and the temperature control unit, the processing unit controls the upper unit, the lower unit and the temperature control unit to process glass original sheets, and the temperature control unit is connected with the upper unit and the lower unit through pipelines; the lower unit comprises a first air control device, a supporting device and a forming device, the forming device comprises a deformation piece and a fixing device, the deformation piece is a sheet-shaped object and has a heat conduction effect, the fixing devices are symmetrically arranged on the supporting device, the fixing device is used for fixing and adjusting the length of the deformation piece, and the first air control device is used for enabling the deformation piece to form an arc surface through the blowing effect; the processing unit is used for controlling the fixing device to adjust the radian of the deformation piece.
2. The glass processing apparatus of claim 1, wherein the lower unit further comprises a first control mechanism, and the upper unit comprises a second air control device and a second control mechanism, the first air control device being coupled to the first control mechanism, the second air control device being coupled to the second control mechanism, the first control mechanism controlling the movement of the first air control device, and the second control mechanism controlling the movement of the second air control device.
3. The glass processing apparatus of claim 2, wherein the temperature control unit comprises a heating bellows, a cooling bellows, and an air blower, one end of the heating bellows is connected to the upper unit and the lower unit through a pipe, the other end of the heating bellows is connected to the air blower through a pipe, the heating bellows heats air blown by the air blower, and the cooling bellows cools the air blown by the air blower.
4. A processing method using the glass processing apparatus according to claim 2 or 3, characterized by comprising the steps of:
s1, inputting the shape data of the glass after hot bending into the processing unit by the user, and adjusting the lower unit by the processing unit through the data;
s2, placing the glass original sheet on the lower unit through a grabbing device, and processing the glass original sheet through the lower unit and the upper unit through the processing unit instructions;
and S3, taking out the glass original sheet through the grabbing device.
5. The method for processing a glass processing apparatus according to claim 4, wherein step S2 is specifically: placing a glass original sheet on the supporting device through a grabbing device, blowing and heating the glass original sheet through the first air control device and the second air control device, and regulating and controlling the temperature of heated air by the processing unit in the heating process; when the glass sheet is heated to a softening state, the glass sheet is thermally bent into a required shape under the action of the first air control device and the second air control device; after the shape of the glass original sheet is kept for a period of time by using the heated air, the glass original sheet is blown by the first air control device and the second air control device to be cooled, so that the glass original sheet is tempered.
6. The processing method of a glass processing apparatus according to claim 5, wherein in the step S2, the processing unit controls the temperature of the heated air during the heating process, and the calculation formula of the used heated air temperature T after the i-th measurement is:
wherein,
the temperature of the glass original sheet in the initial state,
the temperature of the glass original sheet at the ith measurement, t is the heating time from the start of heating to the ith measurement,
is the time interval between two adjacent measurements,
and D is the thickness of the glass original sheet and the softening temperature of the glass.
7. The method for processing a glass processing apparatus according to claim 4, wherein step S1 is specifically: the user will process the relevant data input of back glass shape and transmit extremely in the processing unit, the processing unit is through handling data, and it reaches to issue the instruction fixing device, through fixing device is right the deformation piece is adjusted, makes the required cambered surface of deformation piece formation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710590605.4A CN107352780B (en) | 2017-07-19 | 2017-07-19 | Glass processing device and processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710590605.4A CN107352780B (en) | 2017-07-19 | 2017-07-19 | Glass processing device and processing method |
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| CN107352780A CN107352780A (en) | 2017-11-17 |
| CN107352780B true CN107352780B (en) | 2021-05-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088550A (en) * | 1992-10-15 | 1994-06-29 | 唐格拉斯工程公司 | Process for bending glass sheets and process furnace |
| US5827345A (en) * | 1995-09-07 | 1998-10-27 | Ford Global Technologies, Inc. | Method for heating, forming and tempering a glass sheet |
| CN1236738A (en) * | 1999-04-02 | 1999-12-01 | 颜运生 | Horizontal method for making curved strengthened glass |
| CN101518802A (en) * | 2008-02-25 | 2009-09-02 | 西北工业大学 | Stretch-bending forming die and forming method |
-
2017
- 2017-07-19 CN CN201710590605.4A patent/CN107352780B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088550A (en) * | 1992-10-15 | 1994-06-29 | 唐格拉斯工程公司 | Process for bending glass sheets and process furnace |
| US5827345A (en) * | 1995-09-07 | 1998-10-27 | Ford Global Technologies, Inc. | Method for heating, forming and tempering a glass sheet |
| CN1236738A (en) * | 1999-04-02 | 1999-12-01 | 颜运生 | Horizontal method for making curved strengthened glass |
| CN101518802A (en) * | 2008-02-25 | 2009-09-02 | 西北工业大学 | Stretch-bending forming die and forming method |
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