CN114524604A - Forming equipment for tubular glass - Google Patents
Forming equipment for tubular glass Download PDFInfo
- Publication number
- CN114524604A CN114524604A CN202210138805.7A CN202210138805A CN114524604A CN 114524604 A CN114524604 A CN 114524604A CN 202210138805 A CN202210138805 A CN 202210138805A CN 114524604 A CN114524604 A CN 114524604A
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- China
- Prior art keywords
- overflow
- liquid
- molten glass
- bin
- glass
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
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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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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
Abstract
The utility model relates to a forming equipment of tube type glass, forming equipment includes confession liquid device (1), overflow storehouse (2) and formed part (3), confession liquid device (1) with overflow storehouse (2) intercommunication is used for overflow storehouse (2) confession fused glass, overflow storehouse (2) have hold liquid chamber (21) of fused glass, formed part (3) stretch into hold in liquid chamber (21) to including along vertical direction extension and circumference confined shaping hole (30), formed part (3) have at the feed inlet (31) of the upper end of shaping hole (30) and discharge gate (32) of lower extreme, feed inlet (31) are higher than the bottom surface setting that holds liquid chamber (21). The present disclosure relates to a molding apparatus capable of producing a tube-type glass by an overflow method.
Description
Technical Field
The disclosure relates to the field of glass processing equipment, in particular to forming equipment for tubular glass.
Background
The overflow method for producing the ultrathin electronic glass is a hot point technology in the current ultrathin electronic glass manufacturing, and has the technical advantages of high temperature resistance, high precision, ultrathin property and the like compared with other glass production technologies. In the prior art, the glass produced by the overflow method is completely flat glass, other glass manufacturing technologies are used for tube-type glass such as a bottle and a round tube lamp, the glass is gradually transformed to a high-melting-point glass material along with the improvement of the quality requirement of the glass, and the tube-type glass manufactured by the overflow method is a trend developed in the future.
Disclosure of Invention
An object of the present disclosure is to provide a molding apparatus of a tube type glass capable of producing the tube type glass by an overflow method.
In order to achieve the above object, a forming apparatus for a glass tube is provided, the forming apparatus includes a liquid supply device, an overflow bin, and a forming member, the liquid supply device is communicated with the overflow bin and is used for supplying molten glass to the overflow bin, the overflow bin has a liquid storage cavity for accommodating the molten glass, the forming member extends into the liquid storage cavity and includes a forming hole extending in a vertical direction and closed in a circumferential direction, the forming member has a feed inlet at an upper end of the forming hole and a discharge outlet at a lower end of the forming hole, and the feed inlet is arranged higher than a bottom surface of the liquid storage cavity.
Optionally, the upper edge of the molding member at the feeding port is flush in the horizontal direction.
Optionally, the overflow bin has a feed inlet communicating the liquid supply device and the liquid storage cavity, and the feed inlet is located above the feed inlet.
Optionally, the liquid supply device includes a liquid containing bin for containing the molten glass, the liquid supply device further includes a liquid supply pipe communicating the liquid containing bin with the overflow bin, the liquid containing bin is located above the overflow bin, and the molding apparatus is configured to: when the liquid containing bin supplies the molten glass to the overflow bin, the liquid level height of the molten glass in the liquid containing bin is kept unchanged in the process that the molten glass in the liquid storage cavity enters the forming hole.
Optionally, the forming apparatus further includes a heating device, the liquid supply device includes a liquid supply pipe communicated with the overflow bin, and the heating device is configured to heat the liquid supply pipe and the molten glass in the liquid storage cavity.
Optionally, the heating device comprises a heating element arranged close to the connection of the liquid supply pipe and the overflow bin, and a plurality of heating elements arranged around the overflow bin.
Optionally, the former still includes the cover that keeps warm, it locates to keep warm the cover the outside in overflow storehouse, and a plurality of the heating member all is located keep warm in the cover.
Optionally, the forming device comprises a cooling device, the cooling device is arranged below the discharge hole and is provided with a channel for the glass tube flowing out of the forming hole to pass through.
Optionally, the cooling device comprises a cooling member configured as a cooling pipe spirally wound along a central axis of the forming hole, the cooling pipe being wound with the channel.
Optionally, the cooling device is spaced from the overflow bin, the forming member has an outer end portion extending out of the overflow bin, the outer end portion extends to the upper side of the channel, and the forming hole extends to the end of the outer end portion.
Through the technical scheme, in the forming equipment of the tubular glass provided by the disclosure, the liquid supply device supplies the molten glass to the liquid storage cavity, and the feed inlet is higher than the bottom surface of the liquid storage cavity, so the molten glass in the liquid storage cavity can enter the forming hole through the feed inlet in an overflow mode, and the forming hole is circumferentially closed and extends in the vertical direction, so the molten glass entering the forming hole can gradually flow downwards along the hole wall of the forming hole, further the tubular glass is formed through the forming hole, and the forming hole overflows from the discharge outlet, and therefore the forming equipment can produce the tubular glass through an overflow method.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic partial structural view of a forming apparatus for pipe-type glass provided in an embodiment of the present disclosure.
Description of the reference numerals
1-liquid supply device, 11-liquid containing bin, 2-overflow bin, 21-liquid storage cavity, 22-material inlet, 3-formed part, 30-forming hole, 31-material inlet, 32-material outlet, 33-outer end part, 4-liquid supply pipe, 5-heating device and 6-cooling device.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise specified, the use of the directional terms such as "upper and lower" generally means "upper and lower" in the direction of gravity when the respective components are in use, "inner and outer" with respect to the profile of the corresponding component itself. Furthermore, in the following description, when referring to the figures, the same reference numbers in different figures denote the same or similar elements, unless otherwise explained. The foregoing definitions are provided to illustrate and describe the present disclosure only and should not be construed to limit the present disclosure. In addition, the arrows in the molding apparatus in fig. 1 refer to the flow direction of the molten glass, and the present disclosure will not be described in detail in the following embodiments.
In order to achieve the above object, as shown in fig. 1, the present disclosure provides a forming apparatus of a glass tube, the forming apparatus including a liquid supply device 1, an overflow bin 2, and a formed article 3, the liquid supply device 1 communicating with the overflow bin 2 and supplying molten glass to the overflow bin 2, the overflow bin 2 having a liquid storage chamber 21 for containing the molten glass, the formed article 3 extending into the liquid storage chamber 21 and including a forming hole 30 extending in a vertical direction and closed in a circumferential direction, the formed article 3 having a feed port 31 at an upper end of the forming hole 30 and a discharge port 32 at a lower end thereof, the feed port 31 being disposed higher than a bottom surface of the liquid storage chamber 21.
Through the technical scheme, in the forming equipment for the tubular glass provided by the disclosure, the liquid supply device 1 supplies the molten glass into the liquid storage cavity 21, the feeding hole 31 is higher than the bottom surface of the liquid storage cavity 21, so that the molten glass in the liquid storage cavity 21 can enter the forming hole 30 through the feeding hole 31 in an overflow mode, and the forming hole 30 is circumferentially closed and extends in the vertical direction, so that the molten glass entering the forming hole 30 can gradually flow downwards along the hole wall of the forming hole 30, further the tubular glass is formed through the forming hole 30 and overflows from the discharging hole 32 to form the forming hole 30, and therefore, the forming equipment can produce the tubular glass through an overflow method.
In some embodiments, the cross-section of the forming hole 30 may be circular, and the molten glass overflowing from the forming hole 30 is produced into a circular tube-shaped glass tube, but the cross-section of the forming hole 30 may also be other shapes, such as square or polygon, to meet the requirements of the production process of glass tubes with different cross-sectional shapes.
As an alternative embodiment, as shown in fig. 1, the upper edge of the profile 3 at the feed opening 31 is flush in the horizontal direction. Thus, the edge of the formed member 3 at the feed opening 31 is flush with the horizontal direction, and the molten glass can flow down along the circumferential direction of the hole wall of the forming hole 30, thereby ensuring the quality of the glass product.
As an alternative embodiment, referring to FIG. 1, the overflow bin 2 has an inlet 22 communicating the liquid supply 1 with the reservoir chamber 21, and the inlet 31 is located above the inlet 22. Here, the feed port 31 is located above the feed port 22, so that the molten glass entering from the feed port 22 does not directly flow into the forming hole 30, but the molten glass is continuously stored in the liquid storage chamber 21 until the liquid level of the molten glass in the liquid storage chamber 21 reaches the feed port 31, and the molten glass begins to overflow downwards along the hole wall of the forming hole 30, so that the molten glass can smoothly overflow from the hole wall of the forming hole 30 in the circumferential direction, and the quality of glass products is ensured.
As an alternative embodiment, referring to fig. 1, the liquid supply device 1 includes a liquid containing bin 11 for containing molten glass, the liquid supply device 1 further includes a liquid supply pipe 4 for communicating the liquid containing bin 11 with the overflow bin 2, the liquid containing bin 11 is located above the overflow bin 2, and the forming apparatus is configured to: when the molten glass is supplied from the liquid storage tank 11 to the overflow tank 2, the liquid level of the molten glass in the liquid storage chamber 11 is kept constant while the molten glass in the liquid storage chamber 21 enters the forming hole 30. Here, if the liquid level height of the molten glass in the liquid storage tank 11 is kept constant, the liquid level difference between the molten glass in the liquid storage tank 11 and the molten glass in the liquid storage chamber 21 is kept constant, and the amount of the molten glass overflowing from the forming hole 30 can be kept uniform, thereby effectively controlling the production quality of the tube-shaped glass.
Further, the liquid containing bin 11 is communicated with a kiln, and the kiln is used for melting glass raw materials to form molten glass and then conveying the molten glass into the liquid containing bin 11.
In some other embodiments, the supply tube 4 may be a platinum tube and the molding member 3 may be configured as a cylinder, with the molding hole 30 being collinear with the central axis of the cylinder.
As an alternative embodiment, referring to fig. 1, the forming apparatus further includes a heating device 5, the liquid supply device 1 includes a liquid supply pipe 4 connected to the overflow bin 2, and the heating device 5 is used for heating the liquid supply pipe 4 and the molten glass in the liquid storage chamber 21. Here, the heating device 5 can heat the molten glass in the liquid supply tube 4 and the liquid storage chamber 21, thereby compensating for heat loss of the molten glass during flowing, ensuring the temperature of the molten glass overflowing into the forming hole 30, and preventing the phenomenon that the fluidity of the molten glass is reduced and even the molten glass is solidified from occurring, which affects the production quality of the tube-type glass.
As an alternative embodiment, referring to fig. 1, the heating means 5 may comprise a heating element arranged close to the connection of the supply pipe 4 with the overflow bin 2, and a plurality of heating elements arranged around the overflow bin 2. Here, the heating member provided at the above-mentioned junction can heat the molten glass at the junction to prevent the molten glass in the liquid supply pipe 4 from being cooled during the process of entering the liquid storage chamber 21, and the plurality of heating members provided around the overflow bin 2 can heat the molten glass in the liquid storage chamber 21 to prevent the molten glass in the liquid storage chamber 21 from being cooled during the liquid storage process.
In some other embodiments, the heating element may be a resistance wire that is energized to begin heating the supply tube 4 and the molten glass in the reservoir chamber 21.
As an optional implementation mode, the molding equipment further comprises a heat-insulating cover, the heat-insulating cover is arranged on the outer side of the overflow bin 2, and the plurality of heating elements are all located in the heat-insulating cover. The cover keeps warm can all restrict the most heat that a plurality of heating members produced in the cover keeps warm, can effectively avoid the heat that the heating member produced to flow scattered extravagant.
As an alternative embodiment, referring to fig. 1, the forming apparatus includes a cooling device 6, and the cooling device 6 is disposed below the discharge port 32 and has a passage through which the glass tube flowing out of the forming hole 30 passes. Here, the glass tube can be cooled by the cooling device while passing through the passage, so that the cooling device 6 can cool and set the overflowing glass tube in a molten state.
As an alternative embodiment, referring to fig. 1, the cooling device 6 comprises a cooling element, which may be configured as a cooling tube helically wound along the central axis of the forming hole 30, the cooling tube being formed with a channel around it. Therefore, the cooling pipe spirally wound forms the channel, so that the heat exchange area of the cooling pipe can be increased when the glass pipe is cooled, and the cooling effect on the glass pipe is ensured. Here, according to some embodiments, the cooling pipe may be provided with cold water that continuously circulates and is gradually cooled and formed as the glass pipe in a molten state passes through the passage.
In some other embodiments, the cooling device 6 may also be a sealed heat sink formed with the above-mentioned channel, and a cold air blower is disposed on a side of the sealed heat sink away from the channel, and cold air continuously generated by the cold air blower dissipates heat to the sealed heat sink, thereby cooling the glass tube in a molten state.
As an alternative embodiment, referring to fig. 1, the cooling device 6 is spaced from the overflow bin 2, the profile 3 has an outer end portion 33 extending out of the overflow bin 2, the outer end portion 33 extends to the upper side of the channel, and the profile hole 30 is provided to extend to the end of the outer end portion 33. The outer end portion 33 extends to the upper side of the passage, so that the molten glass is prevented from contacting with the outside air before being cooled, and on the one hand, the influence of the disturbance of the outside air flow on the forming of the molten glass is avoided, and on the other hand, the influence of the chemical reaction of the molten glass and the gas in the outside air on the quality of the tubular glass is also avoided.
The preferred embodiments of the present disclosure are described in detail above with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details in the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure as long as it does not depart from the gist of the present disclosure.
Claims (10)
1. The forming equipment for the tubular glass is characterized by comprising a liquid supply device (1), an overflow bin (2) and a formed part (3), wherein the liquid supply device (1) is communicated with the overflow bin (2) and used for supplying the overflow bin (2) with molten glass, the overflow bin (2) is provided with a liquid storage cavity (21) for containing the molten glass, the formed part (3) extends into the liquid storage cavity (21) and comprises a forming hole (30) which extends in the vertical direction and is circumferentially closed, the formed part (3) is provided with a feeding hole (31) at the upper end of the forming hole (30) and a discharging hole (32) at the lower end of the forming hole (30), and the feeding hole (31) is higher than the bottom surface of the liquid storage cavity (21).
2. The molding apparatus according to claim 1, characterized in that the upper edge of the molded part (3) at the feed opening (31) is level in the horizontal direction.
3. The molding apparatus as defined in claim 1, wherein the overflow bin (2) has a feed opening (22) communicating the liquid supply device (1) and the liquid accumulation chamber (21), the feed opening (31) being located above the feed opening (22).
4. The molding apparatus according to claim 1, wherein the liquid supply device (1) includes a liquid containing chamber (11) for containing the molten glass, the liquid supply device (1) further includes a liquid supply pipe (4) communicating the liquid containing chamber (11) with the overflow chamber (2), the liquid containing chamber (11) is located above the overflow chamber (2), and the molding apparatus is configured to: when the liquid containing bin (11) supplies the molten glass to the overflow bin (2), the liquid level height of the molten glass in the liquid containing bin (11) is kept unchanged in the process that the molten glass in the liquid storage cavity (21) enters the forming hole (30).
5. The molding apparatus as defined in claim 1, further comprising a heating device (5), wherein the liquid supply device (1) includes a liquid supply pipe (4) connected to the overflow bin (2), and the heating device (5) is configured to heat the liquid supply pipe (4) and the molten glass in the liquid storage chamber (21).
6. Moulding device according to claim 5, characterized in that the heating means (5) comprise a heating element arranged close to the connection of the supply pipe (4) with the overflow magazine (2), and a plurality of heating elements arranged around the overflow magazine (2).
7. The molding equipment as claimed in claim 6, further comprising a heat-insulating cover, wherein the heat-insulating cover is arranged outside the overflow bin (2), and the plurality of heating elements are all positioned in the heat-insulating cover.
8. The forming apparatus according to claim 1, characterized in that the forming apparatus comprises a cooling device (6), the cooling device (6) being disposed below the discharge port (32) and having a passage through which the glass tube flowing out from the forming hole (30) passes.
9. The molding apparatus as defined in claim 8, wherein the cooling device (6) comprises a cooling member configured as a cooling tube helically wound along a central axis of the molding hole (30), the cooling tube being wound with the passage formed therein.
10. The molding apparatus as claimed in claim 8, characterized in that the cooling device (6) is arranged at a distance from the overflow magazine (2), the molding element (3) has an outer end section (33) which projects beyond the overflow magazine (2), and the outer end section (33) extends to the upper side of the channel, the molding aperture (30) being arranged to extend to the end of the outer end section (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210138805.7A CN114524604A (en) | 2022-02-15 | 2022-02-15 | Forming equipment for tubular glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210138805.7A CN114524604A (en) | 2022-02-15 | 2022-02-15 | Forming equipment for tubular glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114524604A true CN114524604A (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210138805.7A Pending CN114524604A (en) | 2022-02-15 | 2022-02-15 | Forming equipment for tubular glass |
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| Country | Link |
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| CN (1) | CN114524604A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB348857A (en) * | 1929-11-06 | 1931-05-21 | John Reginald Claridge Jorgens | Process and apparatus for the manufacture of glass tubes and rods |
| US20030029199A1 (en) * | 2001-08-08 | 2003-02-13 | Pitbladdo Richard B. | Sheet glass forming apparatus |
| US20090013725A1 (en) * | 2004-12-28 | 2009-01-15 | Nippon Electric Glass Co., Ltd. | Device for Manufacturing Sheet Glass and Method for Manufacturing Sheet Glass |
| JP2009007184A (en) * | 2007-06-26 | 2009-01-15 | Hoya Corp | Glass molding production method, glass article production method, and apparatus for molding glass |
| CN104379517A (en) * | 2011-11-28 | 2015-02-25 | 康宁股份有限公司 | Down-draw apparatus and methods for providing clean glass-making environment |
| US20150197442A1 (en) * | 2012-08-30 | 2015-07-16 | Corning Incorporated | Apparatus and methods of making a glass tube by drawing molten glass |
| CN106795030A (en) * | 2014-09-03 | 2017-05-31 | 康宁股份有限公司 | The tubular forming apparatus of overflow downdraw glass |
| CN109153591A (en) * | 2016-05-25 | 2019-01-04 | 康宁股份有限公司 | Heating equipment and method for glass tube manufacture |
| CN110255865A (en) * | 2019-05-07 | 2019-09-20 | 成都光明光电股份有限公司 | The equipment and its design method of inside and outside overflow down draw formed glass pipe |
| CN110255864A (en) * | 2019-05-07 | 2019-09-20 | 成都光明光电股份有限公司 | Glass tube overflow down draw molding machine and its design method |
| TWI758187B (en) * | 2021-05-14 | 2022-03-11 | 王慶祥 | Glass tube overflow molding equipment |
-
2022
- 2022-02-15 CN CN202210138805.7A patent/CN114524604A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB348857A (en) * | 1929-11-06 | 1931-05-21 | John Reginald Claridge Jorgens | Process and apparatus for the manufacture of glass tubes and rods |
| US20030029199A1 (en) * | 2001-08-08 | 2003-02-13 | Pitbladdo Richard B. | Sheet glass forming apparatus |
| US20090013725A1 (en) * | 2004-12-28 | 2009-01-15 | Nippon Electric Glass Co., Ltd. | Device for Manufacturing Sheet Glass and Method for Manufacturing Sheet Glass |
| JP2009007184A (en) * | 2007-06-26 | 2009-01-15 | Hoya Corp | Glass molding production method, glass article production method, and apparatus for molding glass |
| CN104379517A (en) * | 2011-11-28 | 2015-02-25 | 康宁股份有限公司 | Down-draw apparatus and methods for providing clean glass-making environment |
| US20150197442A1 (en) * | 2012-08-30 | 2015-07-16 | Corning Incorporated | Apparatus and methods of making a glass tube by drawing molten glass |
| CN106795030A (en) * | 2014-09-03 | 2017-05-31 | 康宁股份有限公司 | The tubular forming apparatus of overflow downdraw glass |
| CN109153591A (en) * | 2016-05-25 | 2019-01-04 | 康宁股份有限公司 | Heating equipment and method for glass tube manufacture |
| CN110255865A (en) * | 2019-05-07 | 2019-09-20 | 成都光明光电股份有限公司 | The equipment and its design method of inside and outside overflow down draw formed glass pipe |
| CN110255864A (en) * | 2019-05-07 | 2019-09-20 | 成都光明光电股份有限公司 | Glass tube overflow down draw molding machine and its design method |
| TWI758187B (en) * | 2021-05-14 | 2022-03-11 | 王慶祥 | Glass tube overflow molding equipment |
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