CN114473643B - Trimming and polishing process of hot glass on production line for manufacturing rolled glass - Google Patents
Trimming and polishing process of hot glass on production line for manufacturing rolled glass Download PDFInfo
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- CN114473643B CN114473643B CN202210124663.9A CN202210124663A CN114473643B CN 114473643 B CN114473643 B CN 114473643B CN 202210124663 A CN202210124663 A CN 202210124663A CN 114473643 B CN114473643 B CN 114473643B
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- 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
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- 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
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
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- 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
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/06—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain
- B24B9/08—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass
- B24B9/10—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of non-metallic inorganic material, e.g. stone, ceramics, porcelain of glass of plate glass
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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- Organic Chemistry (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 rolled glass, which comprises the step of 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 for manufacturing the rolled 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 high temperature of 500-650 ℃ on a rolled 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 rolled glass.
Background
The production of glass by the calender method means that the glass is formed into plate glass by the pressure generated by the gap between the rollers of the calender and the extension of the pressure. When the glass is produced by continuous rolling, the glass liquid flows from the forming tail end to the space between the upper and lower rollers of the rolling mill through the supporting brick, then passes through the rotating upper and lower rollers with a certain gap, and is pressed into a glass plate with required thickness under the action of external force of the rollers.
After hot cutting/cutting and plate breaking are carried out on the rolled glass production line at a high temperature (500-650 ℃), the glass needs to be trimmed and polished at the high temperature, so that the processing quality of the next step can be ensured, and the safety and the 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 rolled glass production line, the invention provides a trimming and polishing process for hot glass on the production line for manufacturing rolled 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 rolled 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 glass calendering 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 execution mechanism of the invention sends signals 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 rolled 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 an 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 table with independent transmission is 10-15m/min, the speed of the annealing kiln roller table 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 toughening 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, the 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 the cylinder rod to move transversely to be close to a rolled 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 outer top of the annealing kiln, one end of a cylinder rod extends into the kiln and is connected with a transverse trimming and polishing unit component to drive the cylinder rod to move downwards to be close to a rolled glass plate, and the cylinder with 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 glass thickness. 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 4-5m/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 breaking area in 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, a front group of trimming and polishing unit components and a rear group of trimming and polishing unit components are arranged, and 10 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 enter the V-shaped groove to be just clamped, and the stainless steel wheel body is symmetrically arranged by taking the V-shaped groove as a center.
Furthermore, 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 disclosed by the invention sequentially carries out longitudinal trimming and polishing treatment and transverse trimming and polishing treatment, the treated glass enters a next deep processing procedure, the edge grinding treatment is not required at the later stage of the edge of the glass treated by the trimming and polishing procedure, the temperature of the process is 500-650 ℃ on a rolled glass production line, the whole longitudinal trimming and polishing process and the whole transverse trimming and polishing process are operated at high temperature, the size of the glass treated by the process disclosed by the invention is accurate, the edge of the glass is trimmed, flat and smooth, and is tidy and free of 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 making any creative effort, shall fall within the protection 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 250t/d one-kiln two-wire calendering production line, the width of an original plate is 2200mm, the thickness of glass is 3.2mm, the size of the plate surface after on-line cutting is 1960 multiplied by 994mm, trimming and polishing treatment are designed, and the size of the plate surface after treatment is 1958 multiplied by 992mm.
The trimming and polishing process of hot glass in the production line for producing rolled glass includes the following steps:
(1) After the longitudinal edge snapping process in the annealing kiln B area of the glass calendering production line, the 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 fire spraying, the edge of the glass in running is heated and softened under the action of flame, and then a smooth and tidy glass edge is formed under the extrusion action of the V-shaped groove 2 of the polishing wheel. The glass plate 1 after the longitudinal trimming continuously runs and turns to the next transverse flattening and polishing process;
the speed of the annealing kiln longitudinal trimming and polishing roller way is 10.7m/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 to 5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of flame (front part) sprayed out by the trimming flame gun 3 is 2000 ℃.
(2) After the glass plate 1 is longitudinally trimmed and polished in the step (1), the glass plate 1 goes forward to turn to a transverse trimming process, when the glass plate 1 enters a transverse trimming and polishing area, a control center sends a signal to enable roller ways with independent transmission to pause, trimming and polishing unit components (a front group and a rear group) arranged above the roller ways of an annealing kiln move towards the lower part of the annealing kiln simultaneously, so that the central line of a V-shaped groove 2 of a polishing wheel is superposed with the central line of the thickness of the glass plate 1, at the moment, the polishing wheel moves towards the direction close to the glass again to enable the polishing wheel to be contacted with two transverse edges of the glass, then a transverse trimming and polishing device reciprocates along the transverse edges of the glass plate 1, the control center sends a signal simultaneously, a trimming flame gun 3 is opened and is aligned with the transverse edges of the glass plate to spray, the glass edges are heated and softened under the action of flame, and smooth and neat glass edges are formed under the extrusion action of the polishing wheel;
the transverse trimming and polishing device comprises 10 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 to 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 1958.3 multiplied by 991.8mm, the diagonal deviation is 1.6mm, the edge of the glass is trimmed, flat and smooth, and is tidy without edge breakage, thereby completely meeting the technical requirements of glass deep processing.
Example 2
On a 250t/d one-kiln two-wire calendering production line, the width of an original plate of the glass is 1900mm, the thickness of the glass is 3.2mm, the size of the plate surface after on-line cutting is 1652 multiplied by 994mm, trimming and polishing are designed, and the size of the plate surface after processing is 1650 multiplied by 992mm.
The trimming and polishing process of hot glass in the production line for producing rolled glass includes the following steps:
(1) After the longitudinal edge breaking process in the annealing kiln B area of the glass calendering production line, the 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 glass in running is heated and softened under the action of the flame, and then a smooth and tidy 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 12.4m/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 at two sides of the annealing kiln, the operation of the polishing wheels and the trimming flame gun 3 is controlled by a control center, the control center is respectively in communication connection with the polishing wheels and the trimming flame gun 3, and the polishing wheels and the trimming flame gun 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 to 5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of flame (front part) sprayed out by the trimming flame gun 3 is 2000 ℃.
(2) After the glass plate 1 is longitudinally trimmed and polished in the step (1), the glass plate 1 goes forward to a transverse trimming and polishing process, when the glass plate 1 enters a transverse trimming and polishing area, a control center sends a signal to enable roller ways with independent transmission to pause, trimming and polishing unit components (a front group and a rear group) arranged above the roller ways of an annealing kiln move towards the lower part of the annealing kiln simultaneously, so that the central line of a V-shaped groove 2 of a polishing wheel is superposed with the thickness central line of the glass plate 1, at the moment, the polishing wheel moves towards the direction close to the glass again, the polishing wheel is contacted with two transverse edges of the glass, then a transverse trimming and polishing device does reciprocating motion along the transverse edges of the glass plate 1, the control center sends a signal, a trimming flame gun 3 is opened and is aligned with the transverse edges of the glass plate to spray, the glass edges are heated and softened under the action of flame, and smooth and tidy glass edges are formed under the extrusion action of the polishing wheel;
the transverse trimming and polishing device comprises 10 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 a volume ratio of 2 to 5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of 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 1650.2 multiplied by 992.1mm, the diagonal deviation is 1.7mm, the edge of the glass is trimmed, flat and smooth, and is tidy without edge breakage, thereby completely meeting the technical requirements of glass deep processing.
Example 3
On a 250t/d one-kiln two-wire calendering production line, the width of an original plate is 1800mm, the plate thickness of glass is 3.2mm, the plate size after on-line cutting is 1582 multiplied by 810mm, trimming and polishing are designed, and the plate size after processing is 1580 multiplied by 808mm.
The trimming and polishing process of hot glass in the production line for producing rolled glass includes the following steps:
(1) After the longitudinal edge snapping process in the annealing kiln B area of the glass calendering production line, the 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 fire spraying, the edge of the glass in running is heated and softened under the action of flame, and then a smooth and tidy glass edge is formed under the extrusion action of the V-shaped groove 2 of the polishing wheel. The glass plate 1 after the longitudinal trimming continuously runs and turns to the next transverse flattening and polishing process;
the speed of the annealing kiln longitudinal trimming and polishing roller way is 13.1m/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 to 5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of flame (front part) sprayed out by the trimming flame gun 3 is 2000 ℃.
(2) After the glass plate 1 is longitudinally trimmed and polished in the step (1), the glass plate 1 goes forward to a transverse trimming and polishing process, when the glass plate 1 enters a transverse trimming and polishing area, a control center sends a signal to enable roller ways with independent transmission to pause, trimming and polishing unit components (a front group and a rear group) arranged above the roller ways of an annealing kiln move towards the lower part of the annealing kiln simultaneously, so that the central line of a V-shaped groove 2 of a polishing wheel is superposed with the thickness central line of the glass plate 1, at the moment, the polishing wheel moves towards the direction close to the glass again, the polishing wheel is contacted with two transverse edges of the glass, then a transverse trimming and polishing device does reciprocating motion along the transverse edges of the glass plate 1, the control center sends a signal, a trimming flame gun 3 is opened and is aligned with the transverse edges of the glass plate to spray, the glass edges are heated and softened under the action of flame, and smooth and tidy glass edges are formed under the extrusion action of the polishing wheel;
the transverse trimming and polishing device comprises 10 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 a volume ratio of 2 to 5, the acetylene outlet pressure is 0.07MPa, the oxygen outlet pressure is 0.4MPa, and the temperature of 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 1580.1 multiplied by 807.8mm, the diagonal deviation is 1.5mm, 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 (8)
1. The trimming and polishing process of the hot glass on a production line for manufacturing the rolled 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 on the production line of the rolled glass by a longitudinal trimming and polishing device and a transverse trimming and polishing device, wherein longitudinal trimming and polishing areas are arranged on two side edges in an annealing kiln, and a transverse trimming and polishing area 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 glass calendering 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 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) 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, a transverse trimming and polishing device moves and is tightly attached 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;
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, wherein 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 longitudinal trimming and polishing device consists of a first lifting adjusting mechanism and a first transverse moving mechanism, and the executing mechanism of the transverse trimming and polishing device consists of a second lifting adjusting mechanism, a second transverse moving mechanism and a longitudinal moving mechanism.
2. The process according to claim 1, wherein the temperature of the high temperature glass plate is 500 to 650 ℃.
3. The process according to claim 1, wherein the longitudinal edge-trimming and polishing device is disposed on two sides of the annealing furnace at the rear part of the longitudinal edge-breaking zone in the B zone of the annealing furnace, and each side is provided with 5-10 edge-trimming and polishing unit components.
4. The process according to claim 1, wherein the transverse trimming and polishing device is arranged behind the longitudinal trimming and polishing zone of the annealing furnace B, is positioned at the upper part of the roller way of the annealing furnace and is parallel to the roller way, and is provided with a front group of trimming and polishing unit components and a rear group of trimming and polishing unit components, wherein the number of the trimming and polishing unit components in each group is 10.
5. The process according to claim 1, 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.
6. The process according to claim 5, wherein the polishing wheel has a heat resistance temperature of greater than 700 ℃ and the trimming flame gun has a heat resistance temperature of greater than 700 ℃.
7. The process according to claim 6, wherein a V-shaped groove is formed in the middle of the stainless steel wheel body so that the edge of the glass plate can enter the V-shaped groove, and the stainless steel wheel body is arranged symmetrically around the V-shaped groove.
8. The trimming and polishing process for hot glass in a production line for manufacturing rolled glass according to claim 1, wherein the temperature of the flame sprayed from the trimming flame gun is 1500 to 3000 ℃, and the fuel of the trimming flame gun is a mixed gas of acetylene and oxygen.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6325704B1 (en) * | 1999-06-14 | 2001-12-04 | Corning Incorporated | Method for finishing edges of glass sheets |
| JP6333673B2 (en) * | 2014-08-29 | 2018-05-30 | ＡｖａｎＳｔｒａｔｅ株式会社 | Manufacturing method of glass substrate and processing liquid |
| CN104722881A (en) * | 2015-04-03 | 2015-06-24 | 浙江国星实业有限公司 | Steel plate cutting machine |
| CN209157943U (en) * | 2018-09-29 | 2019-07-26 | 洛阳兰迪玻璃机器股份有限公司 | A kind of horizontal edging production line of glass plate |
| CN111186704A (en) * | 2019-11-25 | 2020-05-22 | 中国建材国际工程集团有限公司 | Deep processing glass production line |
| CN112429953B (en) * | 2020-11-26 | 2022-04-26 | 四川虹科创新科技有限公司 | Glass substrate edge polishing system and method |
| CN113618536A (en) * | 2021-07-27 | 2021-11-09 | 佛山市汉腾自动化有限公司 | Glass deep processing production line connection method |
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