CN114409236A - Edge-trimming and polishing process of hot glass on production line for manufacturing float glass - Google Patents
Edge-trimming and polishing process of hot glass on production line for manufacturing float glass Download PDFInfo
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- CN114409236A CN114409236A CN202210124678.5A CN202210124678A CN114409236A CN 114409236 A CN114409236 A CN 114409236A CN 202210124678 A CN202210124678 A CN 202210124678A CN 114409236 A CN114409236 A CN 114409236A
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- 238000009966 trimming Methods 0.000 title claims abstract description 216
- 239000011521 glass Substances 0.000 title claims abstract description 159
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 34
- 239000005329 float glass Substances 0.000 title claims abstract description 26
- 238000007517 polishing process Methods 0.000 title claims abstract description 18
- 238000005498 polishing Methods 0.000 claims abstract description 200
- 238000000034 method Methods 0.000 claims abstract description 38
- 238000000137 annealing Methods 0.000 claims description 58
- 229910001220 stainless steel Inorganic materials 0.000 claims description 20
- 239000010935 stainless steel Substances 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 claims description 10
- 238000006124 Pilkington process Methods 0.000 claims description 8
- 239000005357 flat glass Substances 0.000 claims description 6
- 238000007688 edging Methods 0.000 claims 1
- 238000007730 finishing process Methods 0.000 claims 1
- 238000000227 grinding Methods 0.000 abstract description 4
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 13
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 13
- 239000001301 oxygen Substances 0.000 description 13
- 229910052760 oxygen Inorganic materials 0.000 description 13
- 238000001125 extrusion Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 3
- 238000010285 flame spraying Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000006060 molten glass Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
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-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
- C03B29/04—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way
- C03B29/06—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins in a continuous way with horizontal displacement of the products
- C03B29/08—Glass sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
- C03B25/08—Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
-
- 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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention relates to a trimming and polishing process of hot glass on a production line for manufacturing float glass, which is characterized in that a longitudinal trimming and polishing device and a transverse trimming and polishing device are used for longitudinally trimming and polishing a high-temperature glass plate and transversely trimming and polishing the high-temperature glass plate on the production line of the float glass. The high-temperature glass trimming and polishing process sequentially comprises longitudinal trimming and polishing treatment and transverse trimming and polishing treatment, the treated glass enters the next deep processing procedure, the edge grinding treatment is not required at the later stage of the edge of the glass after the trimming and polishing procedure, the process is operated at a temperature of 500-650 ℃ on a float glass production line, the glass after the treatment by the process is accurate in size, the edge of the glass is trimmed, flat and smooth, and is tidy without edge breakage, the edge quality of the glass is far superior to that of a product produced by the glass edge grinding process in the traditional normal temperature state, and the technical requirement of deep processing of the glass is completely met.
Description
Technical Field
The invention belongs to the technical field of glass deep processing, and particularly relates to a trimming and polishing process of hot glass on a production line for manufacturing float glass.
Background
Float glass is named after polishing and forming because molten glass floats on the surface of molten metal, and is glass which is formed by continuously flowing molten glass from a melting furnace into a tin bath filled with protective gas (nitrogen and hydrogen) to float on the surface of metallic tin, flattening and polishing to form a glass belt with uniform thickness and parallel, flat and polished two surfaces, and is one type of flat glass.
After the plate is cut/divided at high temperature (500-650 ℃) on the float glass production line, the glass needs to be trimmed and polished at high temperature, so that the processing quality of the next step can be ensured, and the safety and reliability in final use can be ensured. However, no method for trimming and polishing at high temperature is disclosed at present, and the prior art often adopts the method for trimming and polishing at normal temperature, so that the uniformity and smoothness of the glass edge are low.
The present invention has been made in view of the above circumstances.
Disclosure of Invention
In order to solve the technical difficulty of trimming and polishing on a float glass line, the invention provides a trimming and polishing process for hot glass on a production line for manufacturing float glass.
In order to achieve the purpose, the invention adopts the following technical scheme:
the process comprises the following steps of respectively carrying out longitudinal trimming and polishing treatment and transverse trimming and polishing treatment on a high-temperature glass plate by a longitudinal trimming and polishing device and a transverse trimming and polishing device on a float glass production line, wherein the longitudinal trimming and polishing devices are arranged on two side edges in an annealing kiln, the transverse trimming and polishing device is arranged above a roller way of the annealing kiln, and the process specifically comprises the following steps:
(1) after the longitudinal edge breaking process in the annealing kiln B area of the flat glass float production line, the glass plate enters a longitudinal edge trimming and polishing area, when the glass plate runs to the area, an annealing kiln roller way with independent transmission runs slowly, longitudinal trimming and polishing devices arranged on two side edges of the annealing kiln are close to the longitudinal edge of the glass plate and move synchronously on the glass plate, and then the longitudinal edge trimming and polishing of the glass plate are completed;
(2) and the glass plate after the longitudinal edge trimming and polishing is transmitted on an annealing kiln roller way to continue to move forwards and enters a transverse trimming and polishing area, when the glass plate enters the area, the annealing kiln roller way is paused, the transverse trimming and polishing device moves and is tightly close to the front transverse edge and the rear transverse edge of the glass plate, and the transverse trimming and polishing device swings transversely, so that the transverse trimming and polishing of the glass plate are completed.
Further, the temperature of the high-temperature glass is 500-650 ℃.
Furthermore, the longitudinal trimming and polishing device and the transverse trimming and polishing device have the same structure and consist of a plurality of trimming and polishing unit components and an actuating mechanism, the trimming and polishing unit components comprise a polishing wheel and a trimming flame gun, the polishing wheel and the trimming flame gun are arranged in a one-to-one correspondence manner, and the actuating mechanism is connected with the polishing wheel and the trimming flame gun. The executing mechanism of the invention sends a signal to execute various actions by a control center, and the control center consists of a PLC controller, a computer terminal, a photoelectric sensor and the like.
The longitudinal trimming and polishing treatment principle is as follows: when a float glass plate with a certain size enters a longitudinal trimming and polishing area, a control center sends a signal to enable an annealing kiln roller way with independent transmission to run at a proper speed, trimming and polishing unit components arranged on two sides in the annealing kiln simultaneously move towards the middle of the annealing kiln to enable a polishing wheel to contact the longitudinal edge of the glass plate, the control center sends a signal at the moment, a trimming flame gun is opened and is aligned to the longitudinal edge of the glass plate for flaming, the edge of the glass plate in running is heated and softened under the action of flame, then a smooth and tidy glass edge is formed under the extrusion action of the polishing wheel, and the glass plate after longitudinal trimming and polishing continues to run and turn to the next transverse trimming and polishing process.
The speed range of the annealing kiln roller way with independent transmission is 5-20m/min, the speed of the annealing kiln roller way is controlled by a control center, and the transmission adopts variable frequency speed regulation.
The transverse trimming and polishing treatment principle is as follows: when a glass plate enters a transverse trimming and polishing area, a control center sends a signal to enable a roller way with independent transmission to pause, trimming and polishing unit components (a front group and a rear group) arranged at the upper part of an annealing kiln simultaneously move towards the lower part of the annealing kiln, so that the central line of a V-shaped groove of a polishing wheel is superposed with the central line of the thickness of the glass, then the polishing wheel moves towards the direction close to the glass, the polishing wheel is contacted with two transverse edges of the glass, then a transverse trimming and polishing device reciprocates along the transverse edges of the glass plate, simultaneously the control center sends a signal, a flame gun is opened to aim at the transverse edges of the glass for flaming, the edges of the glass are heated and softened under the action of flame, and a smooth and orderly glass edge is formed under the extrusion action of the polishing wheel. The glass plate after the transverse trimming and polishing treatment continues to run and turns to the next procedure.
Furthermore, the longitudinal trimming and polishing device is also connected with a first lifting adjusting mechanism and a first transverse moving mechanism, and the transverse trimming and polishing device is also connected with a second lifting adjusting mechanism, a second transverse moving mechanism and a longitudinal moving mechanism.
The longitudinal trimming and polishing device runs towards the middle of the annealing kiln through a first transverse movement mechanism, the first transverse movement mechanism is completed by a cylinder group consisting of a plurality of cylinders, a cylinder assembly is fixed on the outer wall of the annealing kiln, one end of a cylinder rod extends into the kiln and is connected with a trimming and polishing unit component to drive transverse movement to be close to a float glass plate, the longitudinal trimming and polishing device is further connected with a first lifting and adjusting mechanism, and the first lifting and adjusting mechanism is provided with a transverse rail support and can be finely adjusted in the vertical position, so that lifting and adjusting are realized. The movement of the cylinder is signaled by the control center.
The transverse trimming and polishing device runs towards the lower part of the annealing kiln through a second lifting adjusting mechanism, the second lifting adjusting mechanism is completed by a cylinder group consisting of a plurality of cylinders, the cylinder group is fixed on the top outside the annealing kiln, one end of a cylinder rod extends into the kiln and is connected with the transverse trimming and polishing unit component to drive the cylinder rod to move downwards to be close to a float glass plate, and the cylinder with a fixed stroke can ensure that the central line of a V-shaped groove of the polishing wheel is accurately consistent with the central line of the thickness of the glass. The transverse trimming and polishing device moves towards the edge of the glass and is realized by a longitudinal movement mechanism, namely a cylinder group connected with a polishing wheel and a flame gun.
The transverse trimming and polishing device does reciprocating motion along the transverse edge of the glass plate and is realized by a second transverse motion structure, namely a reciprocating transmission mechanism connected to the transverse trimming and polishing device, and the moving pitch of the transverse trimming and polishing device is about 250 mm.
The annealing kiln transverse trimming polishing roller way with independent transmission has the speed range of 2-10m/min, the speed is controlled by a control center, and the transmission adopts variable frequency speed regulation.
The glass plate after the transverse trimming and polishing treatment continues to move forward and turns to an online tempering process, and the control center sends a signal to reset the trimming device and waits for the next piece of glass to be in place.
Furthermore, the longitudinal trimming and polishing devices are arranged on two side edges in the annealing kiln at the rear part of the longitudinal edge snapping area of the B area of the annealing kiln.
Further, 5-10 trimming and polishing unit components are arranged on each side edge.
Furthermore, the transverse trimming and polishing device is arranged behind the longitudinal trimming and polishing area of the annealing kiln B area, is positioned at the upper part of the annealing kiln roller way and is parallel to the roller way.
Furthermore, two groups of front and rear trimming and polishing unit components are arranged, and 20 trimming and polishing unit components are arranged in each group.
Furthermore, the polishing wheel consists of a heat-resistant stainless steel wheel body and a high-temperature bearing, the trimming flame gun consists of a flame gun body and an air pipe, and the trimming flame gun is made of heat-resistant stainless steel.
Furthermore, the heat-resistant temperature of the polishing wheel is more than 700 ℃, and the heat-resistant temperature of the trimming flame gun is more than 700 ℃.
Furthermore, a V-shaped groove is formed in the middle of the stainless steel wheel body, so that the edge of the glass plate can be just clamped, and the stainless steel wheel body is symmetrically arranged by taking the V-shaped groove as a center.
Further, the temperature of the flame sprayed out by the trimming flame gun is 1500-3000 ℃, and the fuel of the trimming flame gun is the mixed gas of acetylene and oxygen.
In the trimming and polishing process, the flame rapidly heats the edge of the glass to a softening point, and the longitudinal edge or the transverse edge of the glass is trimmed by a polishing wheel.
The polishing wheel can rotate, the circumferential edge of the polishing wheel is provided with a V-shaped groove, the V-shaped groove is just clamped on the longitudinal edge of the glass during trimming and polishing, and the edge of the glass which is burned to a softening point by a trimming flame gun is trimmed into a smooth and tidy glass edge under the action of the groove of the polishing wheel.
Compared with the prior art, the invention has the beneficial effects that:
the high-temperature glass trimming and polishing process sequentially comprises longitudinal trimming and polishing treatment and transverse trimming and polishing treatment, the treated glass enters the next deep processing procedure, the edge grinding treatment is not required at the later stage of the edge of the glass after the trimming and polishing treatment, the temperature of the process is 500-650 ℃ on a float glass production line, the whole longitudinal trimming and polishing and transverse trimming and polishing process are operated at high temperature, the glass treated by the process disclosed by the invention is accurate in size, the edge of the glass is trimmed, flat and smooth, and is tidy without edge breakage, the quality of the edge of the glass is far superior to that of a product produced by the glass edge grinding process at the conventional normal temperature, and the technical requirement of deep processing of the glass is completely met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the construction of the polishing wheel of the present invention;
FIG. 2 is a schematic view of the construction of the trim flame gun of the present invention;
reference numerals
1-glass plate, 2-V-shaped groove, 3-trimming flame gun and 4-fuel of flame gun.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 and 2 show a schematic view of the structure of the buffing wheel and the structure of the trimming flame gun according to the present invention.
Example 1
On a 600t/d float production line, the width of an original plate is 4000mm, and when 5mm glass is produced, the speed of a main line glass plate is 8-9 m/min. The size of the plate surface after the on-line cutting is 3662 multiplied by 2442mm, and the plate surface is subjected to trimming and polishing treatment.
The trimming and polishing process of the hot glass on the production line for manufacturing the float glass comprises the following steps that (1) the temperature of the high-temperature glass is 500-650 ℃, and the specific process comprises the following steps:
(1) after the longitudinal edge snapping process in the B area of the annealing kiln of the flat glass float production line, a glass plate 1 enters a longitudinal edge trimming and polishing area, when the glass plate runs to the area, a control center sends a signal to enable annealing kiln roller ways with independent transmission to run at a proper speed, meanwhile, longitudinal edge trimming and polishing unit components arranged on two sides of the annealing kiln simultaneously run towards the middle of the annealing kiln, a V-shaped groove 2 of a polishing wheel is made to contact with the longitudinal edge of the glass, at the moment, a flame gun is opened and is aligned with the longitudinal edge of the glass for flame spraying, the edge of the running glass is heated and softened under the action of flame, and then a smooth and neat glass edge is formed under the extrusion action of the V-shaped groove 2 of the polishing wheel. The glass plate 1 after longitudinal trimming continuously runs and turns to the next transverse flattening polishing procedure;
the speed of the annealing kiln longitudinal trimming and polishing roller way is 8.3m/min, the longitudinal trimming and polishing device consists of 2 multiplied by 8 polishing wheels and trimming flame 3 guns, the polishing wheels and the trimming flame 3 guns are respectively arranged on two sides of the annealing kiln, the operation of the polishing wheels and the trimming flame guns is controlled by a control center, the control center is respectively in communication connection with the polishing wheels and the trimming flame guns 3, and the polishing wheels and the trimming flame guns 3 are arranged in a one-to-one correspondence manner. The polishing wheel consists of a heat-resistant stainless steel wheel body and a high-temperature bearing, the trimming flame gun consists of a flame gun body and an air pipe, and the trimming flame gun is made of heat-resistant stainless steel. The fuel 4 of the trimming flame gun is formed by mixing acetylene and oxygen according to the volume ratio of 2:5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of the flame (front part) sprayed out by the trimming flame gun 3 is 2000 ℃.
(2) The glass plate 1 after longitudinal trimming and polishing in the step (1) goes forward to turn to a transverse trimming process, when the glass plate 1 enters the transverse trimming and polishing area, the control center sends out signals to pause the roller ways with independent transmission, the trimming and polishing unit components (a front group and a rear group) arranged above the roller ways of the annealing kiln, and simultaneously moves towards the lower part of the annealing kiln, so that the central line of the V-shaped groove 2 of the polishing wheel is superposed with the central line of the thickness of the glass plate 1, the polishing wheel moves towards the direction close to the glass, so that the polishing wheel contacts two transverse edges of the glass, then the transverse trimming and polishing device reciprocates along the transverse edges of the glass plate 1, meanwhile, the control center sends out signals, the trimming flame gun 3 is opened and is aligned with the transverse edge of the glass plate for flaming, the edge of the glass is heated and softened under the action of flame, and a smooth and tidy glass edge is formed under the extrusion action of the polishing wheel;
the transverse trimming and polishing device comprises 20 unit parts in each row (front and back rows), the unit parts comprise a polishing wheel and a trimming flame gun, the polishing wheel and the trimming flame gun are arranged in a one-to-one correspondence mode, the polishing wheel comprises a heat-resistant stainless steel wheel body and a high-temperature bearing, the trimming flame gun comprises a flame gun body and an air pipe, and the trimming flame gun is made of heat-resistant stainless steel. The distance between adjacent unit components is 200mm, the reciprocating pitch is 250mm, the fuel 4 of the trimming flame gun is formed by mixing acetylene and oxygen according to the volume ratio of 2:5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of the flame (front part) sprayed by the trimming flame gun 3 is 2000 ℃.
The glass plate after the transverse trimming and polishing treatment continues to go forward to the next procedure, and the control center sends a signal to enable the transverse trimming and polishing device to reset to wait for the next piece of glass to be in place. The size of the glass plate after the trimming and polishing treatment of the embodiment is 3660.5 multiplied by 2440.7mm, the diagonal deviation is 2.6mm, the edge of the glass is trimmed, flat and smooth, and is tidy without edge breakage, and the technical requirements of glass deep processing are completely met.
Example 2
On a 600t/d float production line, the width of the original plate is 4000mm, and when 8mm glass is produced, the speed of a main line glass plate is 5-7 m/min. The size of the plate surface after the on-line cutting is 3660 multiplied by 2440mm, and the plate surface is subjected to trimming and polishing treatment.
The trimming and polishing process of the hot glass on the production line for manufacturing the float glass comprises the following steps that (1) the temperature of the high-temperature glass is 500-650 ℃, and the specific process comprises the following steps:
(1) after the longitudinal edge snapping process in the B area of the annealing kiln of the flat glass float production line, a glass plate 1 enters a longitudinal edge trimming and polishing area, when the glass plate runs to the area, a control center sends a signal to enable annealing kiln roller ways with independent transmission to run at a proper speed, meanwhile, longitudinal edge trimming and polishing unit components arranged on two sides of the annealing kiln simultaneously run towards the middle of the annealing kiln, a V-shaped groove 2 of a polishing wheel is made to contact with the longitudinal edge of the glass, at the moment, a flame gun is opened and is aligned with the longitudinal edge of the glass for flame spraying, the edge of the running glass is heated and softened under the action of flame, and then a smooth and neat glass edge is formed under the extrusion action of the V-shaped groove 2 of the polishing wheel. The glass plate 1 after longitudinal trimming continuously runs and turns to the next transverse flattening polishing procedure;
the speed of the annealing kiln longitudinal trimming and polishing roller way is 5.2m/min, the longitudinal trimming and polishing device consists of 2 multiplied by 8 polishing wheels and trimming flame 3 guns, the polishing wheels and the trimming flame 3 guns are respectively arranged on two sides of the annealing kiln, the operation of the polishing wheels and the trimming flame guns is controlled by a control center, the control center is respectively in communication connection with the polishing wheels and the trimming flame guns 3, and the polishing wheels and the trimming flame guns 3 are arranged in a one-to-one correspondence manner. The polishing wheel consists of a heat-resistant stainless steel wheel body and a high-temperature bearing, the trimming flame gun consists of a flame gun body and an air pipe, and the trimming flame gun is made of heat-resistant stainless steel. The fuel 4 of the trimming flame gun is formed by mixing acetylene and oxygen according to the volume ratio of 2:5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of the flame (front part) sprayed out by the trimming flame gun 3 is 2000 ℃.
(2) The glass plate 1 after longitudinal trimming and polishing in the step (1) goes forward to turn to a transverse trimming process, when the glass plate 1 enters the transverse trimming and polishing area, the control center sends out signals to pause the roller ways with independent transmission, the trimming and polishing unit components (a front group and a rear group) arranged above the roller ways of the annealing kiln, and simultaneously moves towards the lower part of the annealing kiln, so that the central line of the V-shaped groove 2 of the polishing wheel is superposed with the central line of the thickness of the glass plate 1, the polishing wheel moves towards the direction close to the glass, so that the polishing wheel contacts two transverse edges of the glass, then the transverse trimming and polishing device reciprocates along the transverse edges of the glass plate 1, meanwhile, the control center sends out signals, the trimming flame gun 3 is opened and is aligned with the transverse edge of the glass plate for flaming, the edge of the glass is heated and softened under the action of flame, and a smooth and tidy glass edge is formed under the extrusion action of the polishing wheel;
the transverse trimming and polishing device comprises 20 unit parts in each row (front and back rows), the unit parts comprise a polishing wheel and a trimming flame gun, the polishing wheel and the trimming flame gun are arranged in a one-to-one correspondence mode, the polishing wheel comprises a heat-resistant stainless steel wheel body and a high-temperature bearing, the trimming flame gun comprises a flame gun body and an air pipe, and the trimming flame gun is made of heat-resistant stainless steel. The distance between adjacent unit components is 200mm, the reciprocating pitch is 250mm, the fuel 4 of the trimming flame gun is formed by mixing acetylene and oxygen according to the volume ratio of 2:5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of the flame (front part) sprayed by the trimming flame gun 3 is 2000 ℃.
The glass plate after the transverse trimming and polishing treatment continues to go forward to the next procedure, and the control center sends a signal to enable the transverse trimming and polishing device to reset to wait for the next piece of glass to be in place. The size of the glass plate after the trimming and polishing treatment of the embodiment is 3659.5 multiplied by 2439.7mm, the diagonal deviation is 2.1mm, the edge of the glass is trimmed, flat and smooth, and is tidy without edge breakage, and the technical requirements of glass deep processing are completely met.
Example 3
On a 600t/d float production line, the width of an original plate is 4000mm, and when 12mm glass is produced, the speed of a main line glass plate is 3-5 m/min. The plate surface after the on-line cutting has the size of 3660x2440mm, and the trimming and polishing treatment is carried out on the plate surface.
The trimming and polishing process of the hot glass on the production line for manufacturing the float glass comprises the following steps that (1) the temperature of the high-temperature glass is 500-650 ℃, and the specific process comprises the following steps:
(1) after the longitudinal edge snapping process in the B area of the annealing kiln of the flat glass float production line, a glass plate 1 enters a longitudinal edge trimming and polishing area, when the glass plate runs to the area, a control center sends a signal to enable annealing kiln roller ways with independent transmission to run at a proper speed, meanwhile, longitudinal edge trimming and polishing unit components arranged on two sides of the annealing kiln simultaneously run towards the middle of the annealing kiln, a V-shaped groove 2 of a polishing wheel is made to contact with the longitudinal edge of the glass, at the moment, a flame gun is opened and is aligned with the longitudinal edge of the glass for flame spraying, the edge of the running glass is heated and softened under the action of flame, and then a smooth and neat glass edge is formed under the extrusion action of the V-shaped groove 2 of the polishing wheel. The glass plate 1 after longitudinal trimming continuously runs and turns to the next transverse flattening polishing procedure;
the speed of the annealing kiln longitudinal trimming and polishing roller way is 3.5m/min, the longitudinal trimming and polishing device consists of 2 multiplied by 8 polishing wheels and trimming flame 3 guns, the polishing wheels and the trimming flame 3 guns are respectively arranged on two sides of the annealing kiln, the operation of the polishing wheels and the trimming flame guns is controlled by a control center, the control center is respectively in communication connection with the polishing wheels and the trimming flame guns 3, and the polishing wheels and the trimming flame guns 3 are arranged in a one-to-one correspondence manner. The polishing wheel consists of a heat-resistant stainless steel wheel body and a high-temperature bearing, the trimming flame gun consists of a flame gun body and an air pipe, and the trimming flame gun is made of heat-resistant stainless steel. The fuel 4 of the trimming flame gun is formed by mixing acetylene and oxygen according to the volume ratio of 2:5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of the flame (front part) sprayed out by the trimming flame gun 3 is 2000 ℃.
(2) The glass plate 1 after longitudinal trimming and polishing in the step (1) goes forward to turn to a transverse trimming process, when the glass plate 1 enters the transverse trimming and polishing area, the control center sends out signals to pause the roller ways with independent transmission, the trimming and polishing unit components (a front group and a rear group) arranged above the roller ways of the annealing kiln, and simultaneously moves towards the lower part of the annealing kiln, so that the central line of the V-shaped groove 2 of the polishing wheel is superposed with the central line of the thickness of the glass plate 1, the polishing wheel moves towards the direction close to the glass, so that the polishing wheel contacts two transverse edges of the glass, then the transverse trimming and polishing device reciprocates along the transverse edges of the glass plate 1, meanwhile, the control center sends out signals, the trimming flame gun 3 is opened and is aligned with the transverse edge of the glass plate for flaming, the edge of the glass is heated and softened under the action of flame, and a smooth and tidy glass edge is formed under the extrusion action of the polishing wheel;
the transverse trimming and polishing device comprises 20 unit parts in each row (front and back rows), the unit parts comprise a polishing wheel and a trimming flame gun, the polishing wheel and the trimming flame gun are arranged in a one-to-one correspondence mode, the polishing wheel comprises a heat-resistant stainless steel wheel body and a high-temperature bearing, the trimming flame gun comprises a flame gun body and an air pipe, and the trimming flame gun is made of heat-resistant stainless steel. The distance between adjacent unit components is 200mm, the reciprocating pitch is 250mm, the fuel 4 of the trimming flame gun is formed by mixing acetylene and oxygen according to the volume ratio of 2:5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of the flame (front part) sprayed by the trimming flame gun 3 is 2000 ℃.
The glass plate after the transverse trimming and polishing treatment continues to go forward to the next procedure, and the control center sends a signal to enable the transverse trimming and polishing device to reset to wait for the next piece of glass to be in place. The size of the glass plate after the trimming and polishing treatment of the embodiment is 3660 multiplied by 2440mm, the diagonal deviation is 2.4mm, the edge of the glass is trimmed, flat and smooth, and is tidy without edge breakage, and the technical requirements of glass deep processing are completely met.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The trimming and polishing process of the hot glass on a production line for manufacturing the float glass is characterized in that the process comprises the following steps of respectively carrying out longitudinal trimming and polishing treatment and transverse trimming and polishing treatment on a high-temperature glass plate by a longitudinal trimming and polishing device and a transverse trimming and polishing device on the production line of the float glass, wherein the longitudinal trimming and polishing devices are arranged on two side edges in an annealing kiln, the transverse trimming and polishing device is arranged above a roller way of the annealing kiln, and the process specifically comprises the following steps:
(1) after the longitudinal edge breaking process in the annealing kiln B area of the flat glass float production line, the glass plate enters a longitudinal edge trimming and polishing area, when the glass plate runs to the area, an annealing kiln roller way with independent transmission runs slowly, longitudinal trimming and polishing devices arranged at two side edges in the annealing kiln are close to the longitudinal edge of the glass plate, and trimming wheels and the glass plate move synchronously so as to finish the longitudinal edge trimming and polishing of the glass plate;
(2) and the glass plate after the longitudinal edge trimming and polishing is transmitted on an annealing kiln roller way to continue to move forwards and enters a transverse trimming and polishing area, when the glass plate enters the area, the annealing kiln roller way is paused, the transverse trimming and polishing device moves and is tightly close to the front transverse edge and the rear transverse edge of the glass plate, and the transverse trimming and polishing device swings transversely, so that the transverse trimming and polishing of the glass plate are completed.
2. The process for edging and polishing hot glass on a production line for manufacturing a float glass according to claim 1, wherein the temperature of the high-temperature glass is 500-650 ℃.
3. The edge-trimming and polishing process for hot glass on a production line for manufacturing float glass according to claim 1, wherein the longitudinal edge-trimming and polishing device and the transverse edge-trimming and polishing device have the same structure and are composed of a plurality of edge-trimming and polishing unit components and an actuator, the edge-trimming and polishing unit components comprise a polishing wheel and an edge-trimming flame gun, the polishing wheel and the edge-trimming flame gun are arranged in a one-to-one correspondence manner, and the actuator is connected with the polishing wheel and the edge-trimming flame gun.
4. The process according to claim 3, wherein the actuator of the longitudinal edge-polishing device comprises a first elevation adjustment mechanism and a first lateral movement mechanism, and the actuator of the lateral edge-polishing device comprises a second elevation adjustment mechanism, a second lateral movement mechanism and a longitudinal movement mechanism.
5. The edge-trimming and polishing process for hot glass in a manufacturing line for float glass according to claim 3 or 4, wherein the longitudinal edge-trimming and polishing device is disposed on both sides of the annealing furnace at the rear of the longitudinal edge-snapping zone in the B zone of the annealing furnace, preferably, 5 to 10 edge-trimming and polishing unit components are disposed on each side.
6. The trimming and polishing process for hot glass in a production line for manufacturing a float glass according to claim 3 or 4, wherein the transverse trimming and polishing device is arranged behind the longitudinal trimming and polishing area of the B area of the annealing furnace, is positioned at the upper part of a roller way of the annealing furnace and is parallel to the roller way; preferably, two groups of front and rear trimming and polishing unit components are provided, and the number of the trimming and polishing unit components in each group is 20.
7. The process of claim 3, wherein the polishing wheel comprises a heat-resistant stainless steel wheel body and a high-temperature bearing, the trimming flame gun comprises a flame gun body and an air pipe, and the trimming flame gun is made of heat-resistant stainless steel.
8. The edge-finishing process for hot glass on a manufacturing line for float glass according to claim 7, wherein the polishing wheel has a heat-resistant temperature of more than 700 ℃ and the edge-finishing flame gun has a heat-resistant temperature of more than 700 ℃.
9. The process of claim 7, wherein the stainless steel wheel body has a V-shaped groove in the middle to allow the edge of the glass plate to enter the V-shaped groove, and the stainless steel wheel body is symmetrically disposed about the V-shaped groove.
10. The trimming and polishing process for hot glass on a production line for manufacturing a float glass according to claim 3, wherein the temperature of the flame sprayed from the trimming flame gun is 1500-.
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