CN115611506A - Device and method for monitoring bow-shaped fluctuation of plate glass on line - Google Patents
Device and method for monitoring bow-shaped fluctuation of plate glass on line Download PDFInfo
- Publication number
- CN115611506A CN115611506A CN202211395705.9A CN202211395705A CN115611506A CN 115611506 A CN115611506 A CN 115611506A CN 202211395705 A CN202211395705 A CN 202211395705A CN 115611506 A CN115611506 A CN 115611506A
- Authority
- CN
- China
- Prior art keywords
- bow
- glass
- type probe
- glass plate
- display control
- Prior art date
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention discloses a method for monitoring bow-shaped fluctuation of sheet glass on line, which comprises the following steps: arranging a reflection type probe between a fire hole of the annealing furnace and the top of the transverse cutting machine through a fixed piece support frame; step two: electrically connecting the reflection-type probe photoelectric converter with the DCS display control system; step three: monitoring the bow state of the glass plate by the reflection-type probe, converting the monitoring data into distance data by a photoelectric converter, and transmitting the distance data to a DCS display control system; step four: the DCS display control system responds according to the arched state of the glass plate; in the monitoring process, when the bow-shaped fluctuation of the glass plate at the fire hole of the annealing furnace is found, the reflection-type probe triggers a DCS alarm switch in a DCS display control system, automatically reminds operators on the forming and crosscutting site to dispose the fluctuated product in time, enters an emergency state and quickly restores the normal production.
Description
Technical Field
The invention relates to the technical field of overflow downdraw plate glass, in particular to a device and a method for monitoring bow-shaped fluctuation of plate glass on line.
Background
The production methods of the substrate glass mainly include a float method, a slit down-draw method and an overflow down-draw method. The overflow downdraw method is to send molten glass liquid into a U-shaped groove on the upper part of an overflow brick, after the overflow groove is full, the molten glass can naturally overflow from two sides of the top of the groove, and the molten glass is converged at the root of a U-shaped overflow device to form a glass belt, continuously falls under the action of gravity, and is drawn by a drawing roller to form substrate glass. In the production process, the outer surface of the molten glass is not contacted with the overflow brick, so that the molten glass has good flatness and smoothness and is high-quality substrate glass.
In a substrate glass production system, a glass ribbon is cooled by a forming furnace and an annealing furnace in a naturally sagging state, flows down through a furnace opening of the annealing furnace, and is cut by a crosscutting device in the flowing-down process to be cut into a size required by a downstream user. In the research, the instant local deformation of different degrees can appear due to the change of the glass plate under the factors such as equipment, environmental airflow and the like when the glass plate flows down in the annealing furnace, and the stability of the warping and stress quality of the glass plate is further influenced in view of the fact that the current monitoring means can not control the local bow-shaped fluctuation change, and besides, the bow-shaped local deformation causes unstable cutting quality when the glass plate is transversely cut, so that the product loss is low, and the production safety accident is high.
Therefore, the invention provides a device and a processing method for monitoring bow-shaped fluctuation of plate glass on line, which can avoid the influence of warping, stress quality and production line production safety caused by bow-shaped change (fluctuation) of the glass plate by monitoring the bow-shaped form of an annealing furnace mouth, thereby improving quality control and stable production.
Disclosure of Invention
The invention aims to provide a method for monitoring bow fluctuation of plate glass on line, which represents the overall and local stability of a bow by measuring the bow of a glass plate and the span change of a measuring point, and improves quality control and stability.
The purpose of the invention can be realized by the following technical scheme:
a method for on-line monitoring of bow wave motion of a sheet glass, comprising:
the method comprises the following steps: arranging a reflection type probe between a furnace mouth of the annealing furnace and the top of the transverse cutting machine through a fixed part support frame;
step two: electrically connecting the reflection-type probe photoelectric converter with the DCS display control system;
step three: monitoring the bow-shaped state of the glass plate of the reflection-type probe, converting the monitoring data into distance data through a photoelectric converter, and transmitting the distance data to a DCS display control system;
step four: the DCS display control system responds according to the bowed state of the glass sheet.
As a further scheme of the invention: in the fourth step, the upper limit mark of the arched state of the glass plate is marked as abnormal glass plate arched monitoring data I, and the lower limit mark of the arched state of the glass plate is marked as abnormal glass plate arched monitoring data II;
when the arch state of the glass plate exceeds the upper limit and the lower limit of the arch fluctuation, the DCS display control system gives an alarm.
As a further scheme of the invention: an apparatus for on-line monitoring bow wave motion of a sheet glass, comprising:
the reflection type probe is arranged between the fire hole of the annealing furnace and the top of the transverse cutting machine and is used for monitoring the arch state of the glass plate at the fire hole of the annealing furnace;
the reflection-type probe is electrically connected with a photoelectric converter through a wire, and the photoelectric converter is electrically connected with a DCS display control system through a wire.
As a further scheme of the invention: the transverse cutting machine steel of transverse cutting machine both sides constructs between the fixed mounting support frame that is provided with, reflection-type probe is located the mounting support frame.
As a further scheme of the invention: and a cooling water jacket is arranged on the periphery of the reflection type probe and is fixedly arranged on the fixing piece supporting frame.
As a further scheme of the invention: the reflection type probe comprises a light source transmitter and a light source receiver inside, the light source transmitter emits light beams to the glass plate, and the light beams reflected by the glass plate are received by the light source receiver.
As a further scheme of the invention: the reflection type probe and the glass plate have no interference.
The invention has the beneficial effects that: in addition, the device monitors the non-flowing arch shape of the glass plate when the glass plate flows out from the furnace mouth of the annealing furnace, and when the shape changes, emergency is made, so that the cutting is prevented from sudden change to cause production interruption, and the production stability is effectively improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of a front view of the present invention;
FIG. 2 is a schematic diagram of a reflective probe according to the present invention;
FIG. 3 is a schematic view of the structure of a cooling water jacket according to the present invention;
FIG. 4 is a schematic structural view of a normal bow configuration of a glass sheet according to the present invention;
FIG. 5 is a schematic structural view of a normal glass sheet configuration of the present invention;
FIG. 6 is a schematic structural view of an abnormal bow configuration of a glass sheet according to the present invention;
FIG. 7 is a schematic view of the structure of an abnormal glass sheet form of the present invention
FIG. 8 is a graphical representation of bow wave monitoring data for a glass sheet according to the present invention.
In the figure: 1. an annealing furnace; 2. a fixed member support frame; 3. a reflective probe; 4. the transverse cutting machine is constructed by steel; 5. a glass plate; 6. a photoelectric converter; 7. a DCS display control system; 8. a cooling water jacket; 14. abnormal glass plate bow monitoring data I; 15. and monitoring data II of abnormal glass plate bow.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-3, the present invention is a method for on-line monitoring bow-shaped fluctuation of a flat glass, comprising:
s1: arranging a reflection type probe 3 on the fixed piece support frame 2, and arranging the fixed piece support frame 2 between the fire hole of the annealing furnace 1 and the top of the transverse cutting machine;
s2: the reflection type probe 3 is electrically connected with a photoelectric converter 6, and the photoelectric converter 6 is electrically connected with a DCS display control system 7;
s3: the reflection type probe 3 emits light beams to the glass plate 5, the reflection type probe 3 receives the returned light beams, the light beams are converted into distance data through the photoelectric converter 6, and the distance data are transmitted to the DCS display control system 7;
s4: the DCS display control system 7 monitors the non-flow arched form of the glass plate 5 when the glass plate 5 flows out of the mouth of the annealing furnace 1, and the emergency is timely carried out when the form changes.
When the glass sheet 5 passes through the lehr 1, the normal bow form of the glass sheet 5 during the run-down is shown in FIG. 4, and the normal glass sheet form of the glass sheet 5 during the run-down is shown in FIG. 5;
when the abnormal bow of the glass plate 5 appears to be shifted as shown in fig. 6, the abnormal glass plate shape which the abnormal bow shape glass plate 5 flows down is shown in fig. 7;
when the glass plate 5 is arched, the arched monitoring data of the glass plate 5 are shown in fig. 8, the arched data of the glass plate 5 are shifted up and down along the arched central line, the upper limit for shifting the arched data of the glass plate 5 is marked as abnormal glass plate arched monitoring data one 14, and the lower limit for shifting the arched data of the glass plate 5 is marked as abnormal glass plate arched monitoring data two 15;
when the bow of the glass plate 5 is affected by temperature, equipment, pressure difference and airflow, the glass plate 5 at the opening 1 of the annealing furnace generates instantaneous bow fluctuation, at the moment, the reflection type probe 3 monitors the data of the distance between the bow monitoring point of the glass plate 8 and the probe, and sends out voice alarm prompt in the DCS display control system 7, and the bow monitoring data exceeds the upper and lower limits of the bow fluctuation (abnormal glass plate bow monitoring data I14 and abnormal glass plate bow monitoring data II 15), and an operator immediately performs related management and control requirement treatment on products in the voice alarm period;
the core points of the invention are as follows: the size of bow-shaped fluctuation when the glass plate 5 goes out of the furnace mouth is monitored, the bow-shaped consistency of the glass plate 5 is ensured, the warping of the forming and the fluctuation of the stress quality are inhibited, besides, the device monitors the non-flowing bow-shaped form of the glass plate 5 when the glass plate 5 flows out of the furnace mouth of the annealing furnace 1, emergency is made when the form is changed, the phenomenon of sudden change of cutting is avoided, the production interruption is avoided, the production line utilization rate is influenced, and the comprehensive yield is reduced.
Example 2
Referring to fig. 1-3, an apparatus for on-line monitoring bow-shaped fluctuation of plate glass comprises an annealing furnace 1, a fixed part support frame 2, a reflection type probe 3, a transverse cutting machine steel structure 4, a glass plate 5, a photoelectric converter 6, a DCS display control system 7 and a cooling water jacket 8
A transverse cutting machine is arranged below the outlet of the annealing furnace 1, and a fixed part support frame 2 is fixedly arranged on a steel structure 4 of the transverse cutting machine at two sides of the transverse cutting machine;
wherein, the fixed part support frame 2 is positioned between the fire hole of the annealing furnace 1 and the top of the transverse cutting machine, and the two ends of the fixed part support frame 2 are fixed with transverse cutting machine steel structures 4 vertical to the two sides of the transverse cutting machine;
furthermore, a plurality of reflection type probes 3 are arranged on the fixing piece supporting frame 2, the reflection type probes 3 are used for monitoring the arc shape of the glass plate 5, and the reflection type probes and the cooling device 3 do not interfere with the glass plate 5.
Wherein, reflection-type probe 3 sets up in cooling water jacket 8, and cooling water jacket 8 is fixed to be set up on mounting support frame 2, has quick, stable cooling effect based on cooling water jacket 8, can effectively promote reflection-type probe 3's detection precision and life.
Furthermore, the reflection type probe 3 has the characteristic of high temperature resistance, the lowest temperature resistance parameter is 200 ℃, the thermal expansion coefficient is smaller, the measurement distance of the reflection type probe 3 is more than 1000mm, and the measurement error is less than 5mm;
the emission type probe 3 is electrically connected with a photoelectric converter 6 through a lead, and the photoelectric converter 6 is electrically connected with a DCS display control system 7 through a lead;
the reflection type probe 3 internally comprises a light source emitter and a light source receiver, wherein light beams emitted by the light source emitter are irradiated onto the glass plate 5, reflected by the glass plate 5 and received by the light source receiver, the optical strength is processed by the measuring sensor, the distance is converted by the photoelectric converter 6, and data are transmitted to the DCS display control system 7;
the DCS display control system 7 monitors the non-flow arched form of the glass plate 5 when the glass plate 5 flows out of the mouth of the annealing furnace 1, and the non-flow arched form is timely emergent when the form is changed, so that the safety accidents of production equipment caused by sudden change of cutting are avoided, and the production line utilization rate and the yield are influenced;
specifically, the method comprises the following steps: when the glass plate 5 at the furnace mouth of the annealing furnace 1 fluctuates in an arc shape, a DCS alarm switch in the DCS display control system 7 is triggered, forming and crosscutting field operators are automatically reminded to deal with the fluctuating products in time, the glass plate enters an emergency state, and normal production is quickly recovered.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (7)
1. A method for on-line monitoring of bow wave motion of a sheet glass, comprising:
the method comprises the following steps: arranging a reflection type probe (3) between a furnace mouth of the annealing furnace (1) and the top of the transverse cutting machine through a fixed part support frame (2);
step two: the photoelectric converter (6) of the reflection type probe (3) is electrically connected, and the photoelectric converter (6) is electrically connected with a DCS display control system (7);
step three: monitoring the bow state of a glass plate (5) through a reflection type probe (3), converting monitoring data into distance data through a photoelectric converter (6), and transmitting the distance data to a DCS display control system (7);
step four: the DCS display control system (7) responds according to the arcuate state of the glass sheet (5).
2. The method for on-line monitoring of bow-shaped fluctuation of sheet glass according to claim 1, wherein in the fourth step, the upper limit of the bow-shaped state toggle of the glass sheet (5) is marked as abnormal glass sheet bow-shaped monitoring data one (14), and the lower limit of the bow-shaped toggle of the glass sheet (5) is marked as abnormal glass sheet bow-shaped monitoring data two (15);
when the arch state of the glass plate (5) exceeds the upper and lower limits of arch fluctuation, the DCS display control system (7) gives an alarm.
3. An apparatus for on-line monitoring of bow wave motion of a sheet glass, comprising:
the reflection type probe (3) is arranged between the fire hole of the annealing furnace (1) and the top of the transverse cutting machine and is used for monitoring the bow-shaped state of the glass plate (5) at the fire hole of the annealing furnace (1);
the reflection-type probe (3) is electrically connected with a photoelectric converter (6) through a wire, and the photoelectric converter (6) is electrically connected with a DCS display control system (7) through a wire.
4. An on-line monitoring device for the bow wave of the flat glass as claimed in claim 3, characterized in that a fixing piece support frame (2) is fixedly arranged between the steel structures (4) of the transverse cutting machine at both sides of the transverse cutting machine, and the reflection type probe (3) is positioned on the fixing piece support frame (2).
5. The device for on-line monitoring of the bow wave of the flat glass as claimed in claim 4, wherein the periphery of the reflection type probe (3) is provided with a cooling water jacket (8), and the cooling water jacket (8) is fixedly arranged on the fixing piece supporting frame (2).
6. An on-line monitoring device for the bow wave of flat glass as claimed in claim 3, wherein the reflection type probe (3) comprises a light source transmitter and a light source receiver inside, the light source transmitter emits a light beam to be irradiated on the glass plate (5), and the light beam reflected by the glass plate (5) is received by the light source receiver.
7. An on-line monitoring device for bow fluctuations in sheet glass according to claim 3, characterized in that there is no interference between the reflection type probe (3) and the glass sheet (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211395705.9A CN115611506A (en) | 2022-11-08 | 2022-11-08 | Device and method for monitoring bow-shaped fluctuation of plate glass on line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211395705.9A CN115611506A (en) | 2022-11-08 | 2022-11-08 | Device and method for monitoring bow-shaped fluctuation of plate glass on line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115611506A true CN115611506A (en) | 2023-01-17 |
Family
ID=84877896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211395705.9A Pending CN115611506A (en) | 2022-11-08 | 2022-11-08 | Device and method for monitoring bow-shaped fluctuation of plate glass on line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115611506A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114920451A (en) * | 2022-05-30 | 2022-08-19 | 彩虹显示器件股份有限公司 | Cutting mechanism of substrate glass transverse cutting machine and substrate glass transverse cutting machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI821533A0 (en) * | 1981-05-01 | 1982-04-30 | John Stephen Nitschke | REGLERINGSSYSTEM FOER OEVERVAKNING OCH REGLERING AV GLASSKIVORS HANTERING I GLASBEHANDLINGSUTRYMME |
| CA1260289A (en) * | 1986-03-06 | 1989-09-26 | Richard D. Schave | Apparatus and method for inspecting glass |
| CN108996893A (en) * | 2018-07-27 | 2018-12-14 | 彩虹显示器件股份有限公司 | A kind of control device and method of plate glass warpage quality |
| CN112592032A (en) * | 2020-12-16 | 2021-04-02 | 成都中光电科技有限公司 | Method and device for monitoring bow of glass substrate during liquid crystal glass forming |
| CN113321407A (en) * | 2021-05-31 | 2021-08-31 | 彩虹（合肥）液晶玻璃有限公司 | Device and method for controlling shape of glass substrate |
-
2022
- 2022-11-08 CN CN202211395705.9A patent/CN115611506A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI821533A0 (en) * | 1981-05-01 | 1982-04-30 | John Stephen Nitschke | REGLERINGSSYSTEM FOER OEVERVAKNING OCH REGLERING AV GLASSKIVORS HANTERING I GLASBEHANDLINGSUTRYMME |
| CA1260289A (en) * | 1986-03-06 | 1989-09-26 | Richard D. Schave | Apparatus and method for inspecting glass |
| CN108996893A (en) * | 2018-07-27 | 2018-12-14 | 彩虹显示器件股份有限公司 | A kind of control device and method of plate glass warpage quality |
| CN112592032A (en) * | 2020-12-16 | 2021-04-02 | 成都中光电科技有限公司 | Method and device for monitoring bow of glass substrate during liquid crystal glass forming |
| CN113321407A (en) * | 2021-05-31 | 2021-08-31 | 彩虹（合肥）液晶玻璃有限公司 | Device and method for controlling shape of glass substrate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114920451A (en) * | 2022-05-30 | 2022-08-19 | 彩虹显示器件股份有限公司 | Cutting mechanism of substrate glass transverse cutting machine and substrate glass transverse cutting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115611506A (en) | Device and method for monitoring bow-shaped fluctuation of plate glass on line | |
| US8820118B2 (en) | Apparatus and methods for producing a glass ribbon | |
| KR101300858B1 (en) | Method and apparatus for making glass sheet | |
| US3779731A (en) | Controlled glass manufacturing process | |
| EP0056262A1 (en) | Process for producing an infrared light transmitting fiber | |
| JP2016222532A (en) | Float glass | |
| CN208496111U (en) | A kind of reflection light detection device for laser cutting head | |
| CN219861091U (en) | Follow-up guiding device for controlling plate glass | |
| US4812151A (en) | Viscosity control in the manufacture of mineral fibers | |
| JP2009107874A (en) | Method for producing glass particulate deposited body | |
| US20050061031A1 (en) | Method of manufacturing glass melt, method of manufacturing molded glass materials, and method of manufacturing optical elements | |
| US3725027A (en) | Apparatus for monitoring the configuration of a ribbon of material | |
| CN208953133U (en) | A kind of distributed fiber temperature measuring device | |
| CN110715748A (en) | Hot galvanizing indirect zinc pot temperature measuring device and measuring method thereof | |
| CN114850431B (en) | Method for forecasting bleed-out of continuous casting crystallizer | |
| CN113790783A (en) | Method and system for controlling thickness and weight of asphalt coiled material product | |
| CN214173580U (en) | Temperature detection control device for processing head of fiber laser | |
| CN104422546A (en) | Conveying, temperature-measuring and alarm equipment for textile fabric | |
| CN109879593A (en) | A kind of glass tape crackle warning device | |
| CN201729907U (en) | Laser alignment device of single crystal furnace | |
| CN107401988B (en) | Optical fiber coating concentricity monitoring system | |
| CN219099002U (en) | Monitoring alarm device for glass transverse cutting breaking state | |
| CN209740997U (en) | Glass ribbon crack alarm device | |
| CN217386138U (en) | Exposure machine exposure alignment platform operation monitoring system | |
| JP2023049305A (en) | Manufacturing apparatus of glass article and manufacturing method of glass article |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |