CN111724953B - Forming and toughening production of toughened glass insulator - Google Patents
Forming and toughening production of toughened glass insulator Download PDFInfo
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- CN111724953B CN111724953B CN202010601077.XA CN202010601077A CN111724953B CN 111724953 B CN111724953 B CN 111724953B CN 202010601077 A CN202010601077 A CN 202010601077A CN 111724953 B CN111724953 B CN 111724953B
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- toughening
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B27/00—Tempering or quenching glass products
- C03B27/04—Tempering or quenching glass products using gas
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B7/00—Distributors for the molten glass; Means for taking-off charges of molten glass; Producing the gob, e.g. controlling the gob shape, weight or delivery tact
- C03B7/08—Feeder spouts, e.g. gob feeders
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The invention provides a molding and toughening production process of a toughened glass insulator, which comprises the following specific steps: s1, feeding: electronic servo feeding of single material drops, transferring onto a transmission device by a manipulator with multiple degrees of freedom S2. pressing: adopting a secondary forming technology of decomposition; s3, temperature equalization: adopting a lengthened temperature equalizing furnace to perform temperature equalizing treatment after pressing the glass piece; s4, toughening: and tempering by adopting a tempering machine with a telescopic lower air grid. The invention optimizes the structure and the size of the press, the toughening machine, the die and the tool, and improves the forming quality of the glass piece; the lower air grid of the tempering machine is innovatively improved, a novel telescopic technology is adopted, the tempering cooling effect can be increased, the special requirements of double-layer umbrella insulators and three-layer umbrella insulators can be met, favorable conditions are created for producing all disc-shaped suspension type tempered glass insulator series products for 100 kN-760 kN alternating current and direct current systems, and therefore all requirements of the power industry on the insulators are met to the greatest extent.
Description
Technical Field
The invention relates to the field of glass insulator production, in particular to a forming and toughening production process of a toughened glass insulator.
Background
The insulator is an important component of an overhead transmission line and is a device with the largest use amount in a power system. The glass insulator has the characteristics of good arc resistance and vibration resistance, difficult aging, good self-cleaning property and the like, and is widely applied to power transmission lines.
The glass body of the glass insulator used at present is made of common toughened glass, the toughening of the glass adopts wind toughening, and the uniform toughening effect on the glass cannot be achieved, so that the glass insulator is easy to break, explode and the like in the use process of a power transmission line, the line maintenance cost is increased, manpower and material resources are increased, and the development and application of the glass insulator are restricted. Therefore, improvements in the tempering forming process are needed.
Disclosure of Invention
The invention aims to provide a forming and toughening production process of a toughened glass insulator.
In order to achieve the purpose, the invention provides a process for producing toughened glass insulators by molding, which comprises the following steps:
s1, feeding: the single-droplet electronic servo feeding is transferred to a transmission device through a mechanical arm with multiple degrees of freedom; the method comprises the steps of adopting a pressing end-point travel calculation technology, accurately regulating and controlling the temperature of glass liquid according to the forming state requirement, customizing the operation track of a feeding machine according to the shape requirement of a gob, ensuring the shape of the gob to be convenient to press, and controlling the weight of the gob through the opening of the feeding machine so as to produce products with different sizes;
preferably, the speed of the single-gob electronic servo feeding machine is 2-10/min, and the weight of the gob is 1-11 kg.
Preferably, the transfer device is a step transfer device.
And the weight of the material is ensured to be stable, the weight of the material drop or the glass piece is weighed once every half hour, and the thicknesses of two heads of the four upper dies are measured.
Compared with the traditional mechanical cam type feeding machine, the single-material-drop electronic servo feeding machine can effectively improve the forming quality of insulators (particularly high-tonnage insulators). The novel mechanical arm with a plurality of degrees of freedom replaces the traditional mechanical arm, the transmission equipment adopts a stepping type, the friction between the glass piece and the equipment is reduced, the product transmission speed is high, the operation is stable, the faults are few, the product quality is ensured, and the automation level of the production line is also improved.
S2, pressing: adopting a secondary forming technology of decomposition, dropping the material drops formed by the feeder into a lower die, pressing down an upper die, and finishing primary forming; after the primary forming, carrying out temperature control, and carrying out secondary finishing on the part to finish the final forming;
in order to improve the forming efficiency and the forming quality, the cooling of the die and the structural optimization of the die are carried out, and the design of the forming die is simplified. In order to ensure the appearance quality of the product, the maintained die is replaced regularly, and generally, the upper die is replaced once in 5 days and the lower die is replaced once in 10 days. If the mould condition influences the product quality, no matter the service life is long, all or part of the mould should be replaced in time.
S3, temperature equalization: carrying out uniform temperature treatment after pressing the glass piece by adopting a lengthened uniform temperature furnace at 670 and 780 ℃, keeping the temperature for 2 minutes, and toughening the product by a toughening machine;
the purpose of the temperature equalizing furnace is to make the temperature of the formed glass piece more uniform and create conditions for the next toughening procedure, and the temperature in the furnace is determined according to the product model.
S4, toughening: and tempering is carried out by adopting a tempering machine with a telescopic lower air grid, and the tempering is carried out by quenching the glass piece to form a pressure stress layer on the surface of the glass piece so as to improve the strength of the glass piece.
Preferably, the rotation speed of the tempering support seat in the tempering machine is as follows: 160-200 r/min.
Preferably, the upper air pressure in the toughening machine is 0.08-0.14 MPa; the lower air pressure is 0.05-0.1 MPa.
Adopt the new technology that can stretch out and draw back, not only can increase the cooling effect of tempering to can satisfy the special demand of double-deck umbrella and three-layer umbrella insulator (because of there is the ladder umbrella in the three umbrella type products of double-deck umbrella, need carry out special design to the air grid, and the air grid needs to go deep into the inside tempering that accomplishes of ladder, and the air grid withdraws from after the tempering is accomplished, so that the tempering machine is left in the glass piece transportation).
The invention has the beneficial effects that:
(1) the traditional mechanical cam type feeder is replaced by the most advanced single-droplet electronic servo feeding machine at present, and the forming quality of the insulator (particularly a high-tonnage insulator) is effectively improved.
(2) The novel mechanical arm with a plurality of degrees of freedom replaces the traditional mechanical arm, the transmission equipment adopts a stepping type, the friction between the glass piece and the equipment is reduced, the product transmission speed is high, the operation is stable, the faults are few, the product quality is ensured, and the automation level of the production line is also improved.
(3) The lengthened temperature equalizing furnace is used for replacing the traditional temperature equalizing furnace, so that the temperature equalizing effect and the tempering quality are improved.
(4) By utilizing the technology of calculating the pressing end point stroke, the temperature of the feeding material and the weight and the shape of the material drop are automatically controlled, good conditions are provided for pressing, and the discharging amount of the smelting furnace is also stabilized.
(5) The adoption of the secondary forming technology of decomposition can consolidate and improve the quality of the one-step forming of the product, simplify the design of a forming die, be beneficial to reducing the faults of a pressing machine and improve the yield of the glass piece production and the product quality.
(6) The structure and the size of a press, a toughening machine, a die and a tool are optimized, and the forming quality of the glass piece is improved; the lower air grid of the tempering machine is innovatively improved, a novel telescopic technology is adopted, the tempering cooling effect can be increased, the special requirements of double-layer umbrella insulators and three-layer umbrella insulators can be met, favorable conditions are created for producing all disc-shaped suspension type tempered glass insulator series products for 100 kN-760 kN alternating current and direct current systems, and therefore all requirements of the power industry on the insulators are met to the greatest extent.
Detailed Description
In order to more clearly and completely describe the technical scheme of the invention, the invention is further described in detail by the specific embodiments, and it should be understood that the specific embodiments described herein are only used for explaining the invention, and are not used for limiting the invention, and various changes can be made within the scope defined by the claims of the invention.
Example 1
A production process for molding and toughening a toughened glass insulator comprises the following specific steps:
s1, feeding: the single-droplet electronic servo feeding is transferred to a transmission device through a mechanical arm with multiple degrees of freedom; the method comprises the steps of adopting a pressing end-point travel calculation technology, accurately regulating and controlling the temperature of glass liquid according to the forming state requirement, customizing the operation track of a feeding machine according to the shape requirement of a gob, ensuring the shape of the gob to be convenient to press, and controlling the weight of the gob through the opening of the feeding machine so as to produce products with different sizes;
wherein, the speed of the single-gob electronic servo feeding machine is 2/min, and the weight of the gob is 11 kg.
Wherein, the transmission equipment is stepping transmission equipment.
S2, pressing: adopting a secondary forming technology of decomposition, dropping the material drops formed by the feeder into a lower die, pressing down an upper die, and finishing primary forming; after the primary forming, carrying out temperature control, and carrying out secondary finishing on the part to finish the final forming;
s3, temperature equalization: carrying out temperature equalization treatment after pressing the glass piece by adopting a lengthened temperature equalization furnace, wherein the temperature is 780 ℃, the heat preservation time is 2 minutes, and the product is tempered by a tempering machine;
s4, toughening: and tempering is carried out by adopting a tempering machine with a telescopic lower air grid, and the tempering is carried out by quenching the glass piece to form a pressure stress layer on the surface of the glass piece so as to improve the strength of the glass piece.
Wherein, tempering the bearing block rotational speed in the tempering machine: 200 r/min.
Wherein the upper wind pressure in the toughening machine is 00.14 MPa; the wind pressure is 0.1 MPa.
Example 2
A production process for molding and toughening a toughened glass insulator comprises the following specific steps:
s1, feeding: the single-droplet electronic servo feeding is transferred to a transmission device through a mechanical arm with multiple degrees of freedom; the method comprises the steps of adopting a pressing end-point travel calculation technology, accurately regulating and controlling the temperature of glass liquid according to the forming state requirement, customizing the operation track of a feeding machine according to the shape requirement of a gob, ensuring the shape of the gob to be convenient to press, and controlling the weight of the gob through the opening of the feeding machine so as to produce products with different sizes;
wherein, the speed of the single-gob electronic servo feeding machine is 10/min, and the weight of the gob is 1 kg.
Wherein, the transmission equipment is stepping transmission equipment.
S2, pressing: adopting a secondary forming technology of decomposition, dropping the material drops formed by the feeder into a lower die, pressing down an upper die, and finishing primary forming; after the primary forming, carrying out temperature control, and carrying out secondary finishing on the part to finish the final forming;
s3, temperature equalization: carrying out uniform temperature treatment after pressing the glass piece by adopting a lengthened uniform temperature furnace, wherein the temperature is 670 ℃, the heat preservation time is 2 minutes, and the product is toughened by a toughening machine;
s4, toughening: and tempering is carried out by adopting a tempering machine with a telescopic lower air grid, and the tempering is carried out by quenching the glass piece to form a pressure stress layer on the surface of the glass piece so as to improve the strength of the glass piece.
Wherein, tempering the bearing block rotational speed in the tempering machine: 160 r/min.
Wherein the upper wind pressure in the toughening machine is 0.08 Mpa; the wind pressure is 0.05 Mpa.
Example 3
A production process for molding and toughening a toughened glass insulator comprises the following specific steps:
s1, feeding: the single-droplet electronic servo feeding is transferred to a transmission device through a mechanical arm with multiple degrees of freedom; the method comprises the steps of adopting a pressing end-point travel calculation technology, accurately regulating and controlling the temperature of glass liquid according to the forming state requirement, customizing the operation track of a feeding machine according to the shape requirement of a gob, ensuring the shape of the gob to be convenient to press, and controlling the weight of the gob through the opening of the feeding machine so as to produce products with different sizes;
wherein, the speed of the single-gob electronic servo feeding machine is 5/min, and the weight of the gob is 5 kg.
Wherein, the transmission equipment is stepping transmission equipment.
S2, pressing: adopting a secondary forming technology of decomposition, dropping the material drops formed by the feeder into a lower die, pressing down an upper die, and finishing primary forming; after the primary forming, carrying out temperature control, and carrying out secondary finishing on the part to finish the final forming;
s3, temperature equalization: carrying out temperature equalization treatment after pressing the glass piece by adopting a lengthened temperature equalization furnace, wherein the temperature is 710 ℃, the heat preservation time is 2 minutes, and the product is tempered by a tempering machine;
s4, toughening: and tempering is carried out by adopting a tempering machine with a telescopic lower air grid, and the tempering is carried out by quenching the glass piece to form a pressure stress layer on the surface of the glass piece so as to improve the strength of the glass piece.
Wherein, tempering the bearing block rotational speed in the tempering machine: 180 r/min.
Wherein the upper wind pressure in the toughening machine is 0.1 Mpa; the lower air pressure is 0.75 Mpa.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, rather than limitations, and that many variations and modifications of the invention are possible to those skilled in the art, without departing from the spirit and scope of the invention.
Claims (4)
1. A production process for molding and toughening a toughened glass insulator is characterized by comprising the following specific steps:
s1, feeding: the single-droplet electronic servo feeding is transferred to a transmission device through a mechanical arm with multiple degrees of freedom; the method comprises the steps of adopting a pressing end-point travel calculation technology, accurately regulating and controlling the temperature of glass liquid according to the forming state requirement, customizing the operation track of a feeding machine according to the shape requirement of a gob, ensuring the shape of the gob to be convenient to press, and controlling the weight of the gob through the opening of the feeding machine so as to produce products with different sizes;
s2, pressing: adopting a secondary forming technology of decomposition, dropping the material drops formed by the feeder into a lower die, pressing down an upper die, and finishing primary forming; after the primary forming, carrying out temperature control, and carrying out secondary finishing on the part to finish the final forming;
s3, temperature equalization: carrying out uniform temperature treatment after pressing the glass piece by adopting a lengthened uniform temperature furnace at 670 and 780 ℃, keeping the temperature for 2 minutes, and toughening the product by a toughening machine;
s4, toughening: tempering is carried out by adopting a tempering machine with a telescopic lower air grid, and a pressure stress layer is formed on the surface of the glass piece by quenching the glass piece during tempering so as to improve the strength of the glass piece; the upper air pressure in the toughening machine is 0.08-0.14 Mpa; the lower air pressure is 0.05-0.1 MPa.
2. The molding and tempering production process of the tempered glass insulator according to claim 1, wherein: the speed of the single-gob electronic servo feeding machine is 2-10/min, and the weight of the gob is 1-11 kg.
3. The molding and tempering production process of the tempered glass insulator according to claim 1, wherein: the transmission equipment is stepping transmission equipment.
4. The molding and tempering production process of the tempered glass insulator according to claim 1, wherein: the rotating speed of the toughening supporting seat in the toughening machine is as follows: 160-200 r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010601077.XA CN111724953B (en) | 2020-06-28 | 2020-06-28 | Forming and toughening production of toughened glass insulator |
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| CN202010601077.XA CN111724953B (en) | 2020-06-28 | 2020-06-28 | Forming and toughening production of toughened glass insulator |
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| CN111724953B true CN111724953B (en) | 2021-12-03 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0612698A1 (en) * | 1993-02-25 | 1994-08-31 | Owens-Brockway Glass Container Inc. | Multiple orifice glass feed system |
| CN1131645A (en) * | 1994-10-13 | 1996-09-25 | 欧文斯-布洛克威玻璃容器有限公司 | Glass gob shearing apparatus |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101937743B (en) * | 2010-09-20 | 2011-11-16 | 华中电网有限公司 | Fiber grating composite insulator and manufacturing method thereof |
| US9254642B2 (en) * | 2012-01-19 | 2016-02-09 | AdvanJet | Control method and apparatus for dispensing high-quality drops of high-viscosity material |
| CN106495438A (en) * | 2015-09-04 | 2017-03-15 | 周淼淼 | Electromechanical glassware shaping production line production technology and control method |
| CN106205906B (en) * | 2016-08-17 | 2017-08-29 | 河南新弘电力科技有限公司 | A kind of tcughened glass insulator and its manufacture method |
| CN207624470U (en) * | 2017-12-18 | 2018-07-17 | 萍乡华鹏电瓷集团有限公司 | A kind of electric power network system overhead transmission line umbrella disc insulator molding machine |
| CN108305729A (en) * | 2018-04-03 | 2018-07-20 | 江西爱瑞达电瓷电气有限公司 | A kind of laminated toughened glass insulator and preparation method |
| CN109250905A (en) * | 2018-10-11 | 2019-01-22 | 国家电网有限公司 | 220KV high voltage power transmission high-intensitive disk-shaped suspension glass insulator and its manufacturing method |
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- 2020-06-28 CN CN202010601077.XA patent/CN111724953B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0612698A1 (en) * | 1993-02-25 | 1994-08-31 | Owens-Brockway Glass Container Inc. | Multiple orifice glass feed system |
| CN1131645A (en) * | 1994-10-13 | 1996-09-25 | 欧文斯-布洛克威玻璃容器有限公司 | Glass gob shearing apparatus |
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