CN103261107B - The manufacture method of glass-pane shaping product and the manufacturing installation of glass-pane shaping product - Google Patents
The manufacture method of glass-pane shaping product and the manufacturing installation of glass-pane shaping product Download PDFInfo
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- CN103261107B CN103261107B CN201180060292.2A CN201180060292A CN103261107B CN 103261107 B CN103261107 B CN 103261107B CN 201180060292 A CN201180060292 A CN 201180060292A CN 103261107 B CN103261107 B CN 103261107B
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- glass
- mother metal
- shaping product
- sheet glass
- glass ribbon
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/037—Re-forming glass sheets by drawing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
- C03B23/033—Re-forming glass sheets by bending by press-bending between shaping moulds in a continuous way, e.g. roll forming, or press-roll bending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/61—Display device manufacture, e.g. liquid crystal displays
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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)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The present invention relates to a kind of manufacture method of glass-pane shaping product, comprising: sheet glass mother metal is softened and with wide this sheet glass mother metal and the thinning mode of thickness of slab stretches and be configured as the stretching process of glass ribbon of narrowing of plate compared with this sheet glass mother metal; And described glass ribbon is cut off along the width of described glass ribbon and makes the cut-out operation of glass-pane shaping product, the extensibility represented by the ratio of the thickness of slab of described sheet glass mother metal and the thickness of slab of described glass-pane shaping product is more than 1.5 and is less than 10.
Description
Technical field
The present invention relates to and a kind ofly make the glass ribbon that the mother metal be made up of sheet glass softens and this mother metal of ejecting plate thickness rate that is shaped is thin, thus manufacture method and the device thereof of glass-pane shaping product.
Background technology
In the past, the glass plate needs of the substrate purposes, display applications etc. of semiconductor element make surface Flatness and surfaceness good.But, when the float glass process extensively universal in the manufacture method utilized as current sheet glass etc. manufacture thin sheet glass, in order to form the sheet glass being applicable to above-mentioned purposes, preferably the surface of the sheet glass after shaping being ground and improving Flatness, the surfaceness on surface.For this reason, there is the technical scheme of the precision of various raising abrading glass plate, but in order to improve grinding precision, having needed the unnecessary milling time of cost and labour, therefore having problems sometimes in manufacturing cost, cost of equipment.
Therefore, knownly a kind ofly use by there is the thickness of slab of regulation and the mother metal (hereinafter referred to as " sheet glass mother metal ") that forms of the good to a certain extent sheet glass of surfaceness, make its thermoplastic, the sheet glass of soft state is stretched, required thickness of slab can be produced thus and the sheet glass of sheets of glass in apparent good order and condition draw manufacturing process (such as with reference to patent documentation 1,2) again.
This draws manufacturing process to be heated into more than softening temperature as by the sheet glass mother metal (such as thickness about 5mm) of heavy wall again, it is stretched and make cross section comparatively unfertile land to form the method for (such as thickness about 0.1mm) more known.
Fig. 5 represents a this conventional example of drawing building mortion again.The building mortion 100 that draws again shown in Fig. 5 possesses: the mother metal feedway 102 that the sheet glass mother metal 101 being configured to of the rectangular shape of vertical ground suspention supporting lengthwise moves up and down freely; The heating unit 103 arranged in the below of this mother metal feedway 102 and annealing device 105; And for by the softening part of sheet glass mother metal 101 tractive and the tractive cylinder 106 stretched downwards.
Draw in building mortion 100 again described, sheet glass mother metal 101 usually uses that thickness is a few about mm, width is tens mm to about about 1m, length for hundreds of is to the sheet glass of the thickness of slab of about several thousand mm, to be shaped the glass ribbon 107 that width is a few mm to tens about mm, thickness is part about mm by this sheet glass mother metal 101.And, drawing in building mortion 100 again shown in Fig. 5, be provided with the shut-off device 108 of glass in the below of tractive cylinder 106, cut off glass ribbon 107 with required length, the glass-pane shaping product 109 of required length can be obtained thus.
Prior art document
Patent documentation
Patent documentation 1: Japanese Laid-Open 2007-126302 publication
Patent documentation 2: Japanese Laid-Open 2009-242190 publication
Summary of the invention
Draw in building mortion 100 again at the existing structure shown in Fig. 5, when this sheet glass mother metal being heated under the state utilizing pulling device 106 tractive sheet glass mother metal and make it softening thus pull into shape glass ribbon 107 again, certainly exist the problem that the front of glass ribbon and rear end side are wasted.
Such as, first heated by heating unit 103 and softening part from producing to pull into again shape in stable condition period, there is the problem cannot producing the glass-pane shaping product of good quality.This is because, the shape of the glass ribbon in heating unit and temperature distribution instability.
After production starts, when through the specified time, to supply and through desired thermal process to heating unit 103, carry out required pulling into shape again, thus obtain the glass-pane shaping product 109 as non-defective unit.
In addition, mother metal feedway 102 holds sheet glass mother metal 101 limit by the claw 102a limit being formed in its underpart and declines, and produces and terminate under the state of claw 102a closest to heating unit 103.But in this case, have the sheet glass mother metal 101 i.e. part from claw to shut-off device of glass ribbon supported by claw 102a at the internal residual of heating unit 103, the glass ribbon that therefore there is this residual part also becomes the problem of waste.Certainly, different according to the length of the part of the scale etc. and waste of drawing building mortion again, but when using the sheet glass mother metal of total length 3m, form the waste of front about 1m, about rear end side 1m sometimes.
That is, use the existing structure shown in Fig. 5 draw building mortion 100 to carry out formed glass sheets molding 109 again time, the waste of material will inevitably be there is, therefore in order to boost productivity, usually by with the thickness of slab (t of sheet glass mother metal 101
0) with the ratio (t of the thickness of slab (t) of glass-pane shaping product 109
0/ t) extensibility that represents sets higher as far as possible and carries out the production of glass-pane shaping product 109.
Such as, under the manufacturing condition that previous patent documentation 1 is recorded, the thickness of sheet glass mother metal 101 is 5 ~ 7mm, in contrast, the thickness of glass plate product is 0.38 ~ 0.64mm, thus extensibility is set as 10 ~ 15.And, if the plate of sheet glass mother metal wide be about 25 ~ 70mm.
But, in recent years, in display applications, lighting use, solar-electricity pool cover glass etc., the needs of the very thin plate of glass are day by day vigorous, but the very thin plate required thickness of the glass of described purposes is below 0.2mm or below 0.1mm, and width is more than 200mm or more than 300mm.But, by aforesaid extensibility draw moulding method to manufacture the very thin plate of glass again time, according to extensibility, the width of sheet glass mother metal 101 is also produced to the change of equal multiplying power.That is, the value that the width of sheet glass mother metal obtains divided by the width of glass molded article is substantially equal to extensibility.Therefore, the width corresponding with extensibility is needed for sheet glass mother metal 101.Such as, the very thin plate of the glass in order to the width obtaining more than 200mm, and produce the needs used more than the sheet glass mother metal 101 of the width of 2m.This problem that production unit can be caused to maximize.
In addition, when production unit maximizes, the temperature control etc. of moving in control, heating unit 103 of mother metal feedway 102 also requires high precision, therefore has the problem causing cost of equipment to rise.
On the other hand, effectively problem is utilized as with sheet glass mother metal, as recorded in patent documentation 2, it is also proposed and add another sheet glass mother metal in the rearward end of sheet glass mother metal and pull into the method for shape again, but the quality that there are the glass-pane shaping product obtained from the part of the seam of sheet glass mother metal declines, and cannot meet the problem of the glass substrate qualities such as display applications.
One of the object of the invention be to provide a kind of when by pulling into shape again and manufacturing the glass-pane shaping product of wide cut without the need to increasing the width of sheet glass mother metal as in the past, and easily implement and the manufacture method of the glass-pane shaping product of the rising of restraining device cost can be realized.
In addition, an object of the present invention is to provide a kind of glass-pane shaping product in order to manufacture wide cut with can not reducing productivity and carry out the manufacture method of the glass-pane shaping product of the supply of sheet glass mother metal continuously.
In addition, the object of the invention be to provide a kind of implement described glass-pane shaping product manufacture method and the manufacturing installation of the glass-pane shaping product of the glass plate product of high-quality can be provided.
For solving the means of problem
The present invention relates to a kind of manufacture method of glass-pane shaping product, wherein, comprising: sheet glass mother metal is softened and with wide this sheet glass mother metal and the thinning mode of thickness of slab stretches and be configured as the stretching process of glass ribbon of narrowing of plate compared with this sheet glass mother metal; And described glass ribbon is cut off along the width of described glass ribbon and makes the cut-out operation of glass-pane shaping product, the extensibility represented by the ratio of the thickness of slab of described sheet glass mother metal and the thickness of slab of described glass-pane shaping product is more than 1.5 and is less than 10.
In manufacture method of the present invention, preferably, the thickness of slab of described sheet glass mother metal is below 0.3mm.
In manufacture method of the present invention, preferably, the plate of described glass-pane shaping product is wide is more than 200mm.
In manufacture method of the present invention, preferably, the plate of described sheet glass mother metal is wide is more than 300mm.
In manufacture method of the present invention, preferably, the thickness of slab of described glass-pane shaping product is below 0.1mm.
In manufacture method of the present invention, preferably, described sheet glass mother metal is the tubular sheet glass mother metal being wound into cylinder, lays out foliated glass and this foliated glass is softened from this tubular sheet glass mother metal.
In manufacture method of the present invention, preferably, described glass ribbon be wound into cylinder and form tubular glass-pane shaping product.
In manufacture method of the present invention, Ke Yishi, comprises the operation cut off along the length direction of this glass ribbon the width end of glass ribbon between described stretching process and described cut-out operation.
In manufacture method of the present invention, preferably, between described stretching process and described cut-out operation, do not comprise the operation cut off along the length direction of this glass ribbon the width end of glass ribbon.
The present invention relates to a kind of manufacturing installation of glass-pane shaping product, for the manufacture method of described glass-pane shaping product, the manufacturing installation of described glass-pane shaping product possesses: the feedway of sheet glass mother metal; Thermoplastic is carried out to the sheet glass mother metal supplied from described feedway and forms the heating unit of glass ribbon; The pulling device of glass ribbon described in tractive; And the glass ribbon after described tractive is cut off and makes the first shut-off device of glass-pane shaping product.
In manufacturing installation of the present invention, preferably, described feedway is the device of the described sheet glass mother metal that supply lays out from the tubular sheet glass mother metal being wound into cylinder.
In manufacturing installation of the present invention, preferably, between described feedway and described heating unit, be provided with the unit adjusted independent of the tension force of the glass ribbon produced by described pulling device by the tension force of the described sheet glass mother metal laid out.
Manufacturing installation of the present invention can possess the second shut-off device being arranged on and removing between described pulling device and described first shut-off device and by the width both ends of glass ribbon.
Manufacturing installation of the present invention can possess the wind2 described glass ribbon being wound as tubular glass-pane shaping product, and the described first shut-off device side of described wind2 is provided with the unit adjusted independent of the tension force of the glass ribbon produced by described pulling device by the tension force of glass ribbon.
Manufacturing installation of the present invention can possess and to be arranged between described heating unit and described pulling device and to the annealing device having carried out thermoplastic glass ribbon and carry out slow cooling.
Invention effect
The present invention relates to a kind of manufacture method of glass-pane shaping product, comprising: sheet glass mother metal is softened and with wide this sheet glass mother metal and the thinning mode of thickness of slab stretches and be configured as the stretching process of glass ribbon of narrowing of plate compared with this sheet glass mother metal; And described glass ribbon is made the cut-out operation of glass-pane shaping product along the width cut-out of described glass ribbon, the extensibility represented by the ratio of the thickness of slab of described sheet glass mother metal and the thickness of slab of described glass-pane shaping product is more than 1.5 and is less than 10, even if the width of the therefore required glass-pane shaping product wide cut that to be more than 200mm or more than 300mm such, also without the need to making the sheet glass mother metal becoming its basis be width large as in the past.Therefore, even if the width of the required glass-pane shaping product wide cut that to be 200mm or more than 300mm such, also the manufacturing installation of glass-pane shaping product need not be made to maximize, and can restraining device cost rising and produce the excellent and glass-pane shaping product of surfaceness excellence of Flatness.
In addition, the glass-pane shaping product obtained as the manufacturing installation by glass-pane shaping product, the glass-pane shaping product of wide cut of Flatness, surfaceness excellence can be obtained, therefore, it is possible to provide the excellent glass-pane shaping product such as the display unit purposes requiring Flatness, surfaceness excellence.
If the thickness of slab making described sheet glass mother metal is below 0.3mm, then be less than in the scope of the extensibility of 10 described more than 1.5, easily can obtain the glass-pane shaping product of the thickness of below 0.1mm, the flexible excellent very thin glass-pane shaping product that can reel can be provided.
If the thickness of slab making described sheet glass mother metal is below 0.3mm, then sheet glass has sufficient flexibility, therefore, it is possible to supply out the rectangular sheet glass mother metal being wound into tubular, tubular sheet glass mother metal limit can be laid out from cylinder and supplies to heating unit in limit, shape is pulled into again therefore, it is possible to be applied to by rectangular sheet glass mother metal, even if consider the sheet glass mother metal becoming waste produced when starting and at the end of producing, the waste of glass material also can be reduced.
By arranging the wind2 of tubular wound into a roll for glass ribbon, and the glass-pane shaping product being wound into cylinder can be obtained.Rectangular glasswork can be obtained thus, easily carry as the glass-pane shaping product being wound into cylinder or receive.And, become the glass-pane shaping product being wound into cylinder thus, be therefore processed as object with another and also easily utilize in other operation.
Accompanying drawing explanation
Fig. 1 represents the manufacturing installation of the glass-pane shaping product of the first embodiment of the present invention, and Fig. 1 (A) represents integrally-built sketch, Fig. 1 (B) be the manufacturing installation of these glass-pane shaping product take local as the side-view of section.
Fig. 2 is the integrally-built sketch of the manufacturing installation of the glass-pane shaping product representing the second embodiment of the present invention.
Fig. 3 be the manufacturing installation of the glass-pane shaping product of the 3rd embodiment of the present invention take local as the side-view of section.
Fig. 4 is the integrally-built sketch of the manufacturing installation of the glass-pane shaping product representing the 4th embodiment of the present invention.
Fig. 5 is the integrally-built sketch drawing building mortion again represented in the past.
Embodiment
Below, based on accompanying drawing, the first embodiment of the manufacturing installation of glass-pane shaping product of the present invention is described, but the present invention is not limited to following embodiment.And, in each figure shown below, about the scale of each textural element, when illustrating in order to easily hold and reduced representation.
Fig. 1 is the integrally-built figure of the manufacturing installation representing glass-pane shaping product of the present invention, and the manufacturing installation 20 of the glass-pane shaping product of present embodiment possesses the mother metal feedway 5 sheet glass mother metal 1 be made up of the glass of tabular being wound on the reel 3 of horizontal supporting cylinder, the heating unit 6, annealing device 7, pulling device 8, shut-off device 9(first shut-off device that set gradually in the lower side of this mother metal feedway 5), wind2 (winch spool) 10.
At this, sheet glass mother metal is the starting material (mother metal) before being shaped, and represents that form is the sheet glass of flat sheet glass or the tubular being wound into tubular.And this sheet glass mother metal, when being shaped beginning, becomes and glass ribbon continuous print state described later.And, sheet glass mother metal refer to starting material be namely shaped before the material of state that is not also stretched of sheet glass mother metal, represent that thickness of slab keeps the material of the state of sheet glass mother metal originally.Thus, in stable shaping, accept heat entering heating unit and before fully reaching a high temperature, be sheet glass mother metal.
Sheet glass mother metal 1 is preferably made up of the sheets of glass of the band shape of such as below thickness 0.3mm.Sheet glass mother metal 1 is by below thickness of slab 0.3mm, and the sheets of glass with flexible band shape that such as can be wound into the thickness of cylinder like that with 0.25mm, 0.15mm, 0.1mm is formed, and the periphery of the reel 3 of cylindrical shape reels necessary length.The sheet glass laid out of sheet glass mother metal 1 can installed this reel 3 with suitable speed to the feedway 5 that heating unit 6 supplies.The length of sheet glass mother metal 1 at random can be selected the diameter of reel 3 and can be wound in the length of this reel 3, but as an example, can be set to the sheet glass mother metal 1 of the length of more than 5m or more than 10m.
The method manufacturing sheet glass mother metal 1 is not particularly limited, and can utilize such as float forming, fusing shaping, slot draw shaping, pull-up shaping, grinding forming etc. can the general manufacture method of molding glass thin plate.If the sheet glass mother metal 1 of the sheets of glass of the above-mentioned thickness utilizing described general manufacture method to be shaped, then can easily be wound in reel 3, therefore can be suitable for the sheet glass mother metal 1 of the length that the sheet glass mother metal that uses than existing apparatus differs greatly according to the external diameter of reel 3.
It should be noted that, if the sheet glass mother metal 1 be made up of the sheets of glass obtained by float glass process, then can obtain the sheet glass mother metal 1 of wide cut at an easy rate, and easily be suitable for.And, headed by float glass process, to arrange manufacturing installation of the present invention with the manufacturing installation continuous print form of sheet glass mother metal, the manufacture of sheet glass finished product can be carried out continuously with the manufacturing process of sheet glass mother metal.
When being manufactured sheet glass mother metal 1 by float glass process, if thickness is excessively thin, then glass rigid disappears, and cannot guarantee wide cut intensity, is therefore preferably below 0.3mm, such as, be preferably more than 0.05mm and below 0.3mm.And the thickness of sheet glass mother metal 1 is more preferably more than 0.1mm and below 0.25mm, further preferably more than 0.1mm and below 0.2mm.When thickness is more than 0.3mm, be difficult to bend, production unit becomes large-scale.
The width of sheet glass mother metal 1, according to the requirement of the wide cut to glasswork, is preferably more than 300mm, such as, be preferably more than 300mm and below 4000mm.And the width of sheet glass mother metal 1 is more preferably more than 450mm and below 3000mm, further preferably more than 600mm and below 2000mm.When width is more than 4000mm, device becomes large-scale, and pulling into the temperature distribution management of glass important in shape again, especially the management of width becomes difficulty, is difficult to produce the uniform goods glass of thickness of slab.
Sheet glass mother metal 1 be the length of the situation of cylinder as described later in short-term, production efficiency declines, and is therefore preferably more than 2m and below 8000m, is more preferably more than 10m and below 3000m, more preferably more than 30m and below 500m.If the length of cylinder is long, then easily damaged because of the deadweight of cylinder when to be wound into tin, be difficult to process.
Identical with sheet glass mother metal, when the thickness of the glass-pane shaping product manufactured by above-mentioned sheet glass mother metal 1 is crossed thin, glass rigid disappears, and cannot guarantee wide cut intensity, is therefore preferably below 0.1mm, such as, be preferably more than 0.01mm and below 0.1mm.And the thickness of glass-pane shaping product is more preferably more than 0.02mm and below 0.08mm, further preferably more than 0.02mm and below 0.07mm.When thickness is more than 0.1mm, then draw the production efficiency of manufacturing process to reduce, possibly cannot fully obtain effect of the present invention.
The width of glass-pane shaping product, according to the requirement of the maximization of the thin glass of indicating meter, illumination, solar cell, building etc., is preferably more than 200mm, such as, be preferably more than 200mm and below 2000mm.And the width of glass-pane shaping product is more preferably more than 200mm and below 1500mm, more preferably more than 300mm and below 1200mm.When width is more than 2000mm, due to thin, be therefore difficult to process.
Glass-pane shaping product are that the length of the situation of cylinder is not particularly limited.Suitable length can be cut into by stapling machine, directly take out with tubular or carry out adopting plate with the tabular of rectangular shape and so-called one chip.
In addition, the glass of the formation sheet glass mother metal 1 of present embodiment is not particularly limited on composition.Therefore, can any one for receiving in lime glass, mixed base system glass, pyrex or non-alkali glass.And the purposes of the glasswork of manufacture is not defined as building or vehicle use, there are flat-panel monitor use, other various uses.The representational composition forming the glass of sheet glass mother metal 1 is listed below.
Use in for building or for motor vehicle sheet glass receive lime glass, represent preferably there is following composition: SiO with the quality percentage of oxide compound benchmark
2: 65 ~ 75%, Al
2o
3: 0 ~ 3%, CaO:5 ~ 15%, MgO:0 ~ 15%, Na
2o:10 ~ 20%, K
2o:0 ~ 3%, Li
2o:0 ~ 5%, Fe
2o
3: 0 ~ 3%, TiO
2: 0 ~ 5%, CeO
2: 0 ~ 3%, BaO:0 ~ 5%, SrO:0 ~ 5%, B
2o
3: 0 ~ 5%, ZnO:0 ~ 5%, ZrO
2: 0 ~ 5%, SnO
2: 0 ~ 3%, SO
3: 0 ~ 0.5%.
When liquid-crystal display with or OLED display substrate in use non-alkali glass, represent preferably there is following composition: SiO with the quality percentage of oxide compound benchmark
2: 39 ~ 75%, Al
2o
3: 3 ~ 27%, B
2o
3: 0 ~ 20%, MgO:0 ~ 13%, CaO:0 ~ 17%, SrO:0 ~ 20%, BaO:0 ~ 30%.
When the mixed base system glass used in the substrate of plasma display, represent preferably there is following composition: SiO with the quality percentage of oxide compound benchmark
2: 50 ~ 75%, Al
2o
3: 0 ~ 15%, MgO+CaO+SrO+BaO+ZnO:6 ~ 24%, Na
2o+K
2o:6 ~ 24%.
As other purposes, when the pyrex used in thermally resistant container or physical chemistry utensil etc., represent preferably there is following composition: SiO with the quality percentage of oxide compound benchmark
2: 60 ~ 85%, Al
2o
3: 0 ~ 5%, B
2o
3: 5 ~ 20%, Na
2o+K
2o:2 ~ 10%.
Described heating unit 6 is made up of the vertical stove core barrel 6A of cross section rectangular shape and the well heater of not shown multiple resistance-types that arranges around it.This heating unit 6 makes the opening portion of a side of stove core barrel 6A as inlet portion 6B upwards, and makes the opening portion of the opposing party as export department 6C downwards, is generally perpendicularly arranged on the below of mother metal feedway 5.Stove core barrel 6A is formed as the sheet glass mother metal 1 laid out downwards from reel 3 to be inserted from inlet portion 6B to stove core barrel private side and the size of discharging from export department 6C.
Heating unit 6 is configured to by heating the glass ribbon 2A of the inside by stove core barrel 6A to described well heater energising.The well heater used in the present embodiment preferably arranges multiple around stove core barrel 6A, by controlling the turn on angle to multiple well heater respectively, the necessary position computer heating control of the glass ribbon 2A by stove core barrel 6A can be become the suitable temperature of more than softening temperature.
It should be noted that, at this, sheet glass mother metal 1 enters heating unit and softens, and is thinned to and terminates to be shaped and the sheet glass cut off as the band shape till before glass-pane shaping product is called glass ribbon from thickness of slab.And, at this, glass-pane shaping product refer to after forming using the sheet glass as intermediate or finished goods of the state after glass ribbon cuts off, the situation of the situation comprising flat sheet glass and the tubular sheet glass that is wound into tubular, also can be under the form can transported to subsequent processing or client's operation, the sheet glass after glass pane surface carries out coating or pad pasting stackedization.But the calculating of extensibility in this case only calculates according to the thickness of slab of the glass part of sheet glass.
When temporally sequence explanation pulls into the principle of shape again, if act on tensioned sheet glass mother metal to be heated, soften, then thickness of slab is thinning gradually, in the process of cooling, the minimizing of thickness of slab stops and becoming constant thickness, forms glass-pane shaping product by being cut off by this constant thickness portion.In this case, tensioned owing to acting on all the time on sheet glass mother metal, therefore in softening moment, thickness of slab is thinning.In above-mentioned definition, the glass of this part becomes glass ribbon.Thus, temporally sequence makes sheet glass mother metal heat, softens and be shaped, but when the spatial apparatus structure in stable formation is described, is in fact heated by glass ribbon.
Heating unit 6 by the draw rate (hereinafter referred to as " forming speed ") of the pulling device 8 due to tractive glass ribbon 2 with to supply to heating unit sheet glass mother metal 1 speed (hereinafter referred to as " feed speed ") difference and under state that the tension force that produces puts on sheet glass mother metal 1, make sheet glass mother metal softening and be roughly trapezium-shaped (shape shorter than top below) stretching and form glass ribbon (below, the stretched portion of this roughly trapezium-shaped is called glass ribbon stretch zones 2A), and guarantee to maintain the temperature environment of the state that glass ribbon stretch zones 2A is softened.
In addition, can be also following structure: the internal feed to stove core barrel purifies air, N
2gas, Ar gas, He gas or their mixed gas, complete the stretching of glass ribbon the environment not being mixed into impurity etc. from heating atmosphere.
Annealing device 7 is formed as following structure: the well heater and the refrigerating unit such as air cooling pipe, water cooling tube etc. that are built-in with not shown resistance-type in the inside of the vertical square tube wall 7A of cross section rectangular shape.Annealing device 7 makes the opening portion of a side of square tube wall 7A as inlet portion 7B upward, and makes the opening portion of the opposing party, roughly be configured in the below of heating unit 6 down as export department 7C vertical.
In order to make width and thickness by heating unit 6 reduce after glass ribbon 2B to control the residual strain of glass or fictive temperature and to avoid the mode of breaking to be reduced to arbitrary temperature close to normal temperature, and be configured with annealing device 7.It should be noted that, the annealing device 7 of present embodiment is arranged relative to heating unit 6 split, but is preferably difficult to be separated and the structure integrated with heating unit 6.This is because heating region and slow cooling region are difficult in fact be separated, and both are integrally formed glass temperature gradient.
Described pulling device 8 is formed as following structure: be adjacently configured with two cylinders 12 by bolster 11 horizontal supporting, to be clamped the glass ribbon 2 of deriving from the export department 7C of annealing device 7 by cylinder 12,12 and the mode that each cylinder 12 can be made to rotate is formed.By described cylinder 12,12 clamping glass band 2 and with suitable speed tractive glass ribbon 2, sheet glass mother metal 1 can be pulled out from described mother metal feedway 5 thus.Pulling device 8 both can be arranged in heating unit 6 or in annealing device 7, also can arrange multiple.And cylinder 12,12 both can contact with whole of the width of glass ribbon, also can only contact with a part for width.
Shut-off device 9 is built-in with the cutting unit that can form line along its width for the glass ribbon 2B by its inside and the bending shut-off device that glass ribbon 2 is cut off along this line effect by shearing force.Be built in cutting unit in this shut-off device 9 and bending shut-off device is equal to the known glass severing device that the manufacturing line of general sheet glass possesses, therefore detailed.It should be noted that, shut-off device 9 is not limited to the unitized construction of cutting unit and bending shut-off device, also can be by laser beam without the line ground chopping up apparatus of mode of cutting off, or the arbitrary structure such as the device utilizing laser beam directly to fuse.
Winch spool (wind2) 10 is the devices of necessary length of the glass ribbon 2 after have passed pulling device 8 and shut-off device 9 can being reeled.
Then, the manufacturing installation 20 of the glass-pane shaping product using described structure is described, is manufactured the method for glass-pane shaping product 15 by sheet glass mother metal 1 via glass ribbon 2.
First, repair by the well heater energising to heating unit 6 the sheet glass mother metal (being shaped start time) or the thermoplastic environment of glass ribbon that make to be supplied to stove core barrel 6A inside in advance.And the setting well heater of annealing device 7 and the heating cooling conditions of refrigerating unit, finishing in advance makes the environment of glass ribbon (be shaped and also have the situation of sheet glass mother metal when starting) slow cooling.
On the reel 3 of mother metal feedway 5, winding is the sheet glass mother metal 1 be made up of the sheet glass of below thickness of slab 0.3mm, this sheet glass mother metal 2 is supplied to heating unit 6 and annealing device 7 with suitable speed from reel 3, to be clamped between cylinder 12,12 and to carry out tractive with suitable speed or tension force.
Sheet glass mother metal in the heating unit 6 be shaped when starting is heated, and occur softening, meanwhile, sheet glass mother metal 1 forms glass ribbon stretch zones 2A, and thickness of slab starts thinning.
Then, feed speed and forming speed setting are become desired value, and heating unit 6 or imposing a condition of annealing device 7 are also set to stabilization condition.In this process, the shape of glass ribbon stretch zones 2A or temperature distribution are stablized, the glass ribbon 2 of Rack and specific thickness can be pulled out.
It should be noted that, in shaping start time, the front of the glass ribbon of pulling device 8 tractive is without stretching process, and therefore its width and thickness of slab do not reduce.Therefore, glass ribbon stretch zones 2A is stable to be formed, stretching process stablize carry out before during, not that glass ribbon is wound in wind2 10, but pull out from pulling device 8 to side, be sent to not shown shredding unit etc. as the not part of producing start time, be processed into glass cullet etc. and recycle.
Continue above-mentioned process, temperature distribution in time heating glass ribbon is stablized, and after glass ribbon stretch zones 2A pulls out the glass ribbon 2 of specific thickness and Rack, glass ribbon 2 is sent to shut-off device 9 side, makes it be wound in winch spool 10 by shut-off device 9.Continue above-mentioned process, when glass ribbon 2 of the sufficient amount that reeled to winch spool 10 when, shut-off device 9 is worked, glass ribbon 2 is cut off.Thereby, it is possible to obtain the glass-pane shaping product from tubular to winch spool 10 and the glass infuser 15 that glass ribbon 2 are wound into.
Then, the winch spool 10 of glass ribbon 2 circumvolution is had to be replaced by the winch spool 10 of another sky, to the glass ribbon 2 of the winch spool 10 circumvolution collecting new production of this sky, the glass infuser 15 of the glass ribbon 2B possessing the state being wound into cylinder can be obtained, therefore, before sheet glass mother metal 2 terminates to the supply of heating unit 6, glass infuser 15 can repeatedly be produced.
It should be noted that, in the present embodiment, the manufacturing installation 20 of the glass-pane shaping product of the structure shown in Fig. 1 uses to manufacture glass infuser 15 in order to glass ribbon 2 is wound into cylinder to winch spool 10, but is not confined to the mode only manufacturing glass infuser 15.Such as, also can use as following purposes, that is: the manufacturing installation 20 of glass-pane shaping product is used, as shown in the two dot chain line of Fig. 1 (A), glass ribbon 2 is not wound in winch spool 10, and by shut-off device 9, glass ribbon 2 is cut into desired length, produce the tabular of rectangular shape and the sheets of glass 16 of so-called one chip thus.
With extensibility α for parameter, relatively carry out the investigation relevant with the viewpoint of the material of the productivity of the glass-pane shaping product in present embodiment (hereinafter referred to as " material produce rate ") to conventional example.
First, the material produce rate in the conventional example shown in Fig. 5 is studied.Can produce by a sheet glass mother metal area A of material produce rate β before the shaping being defined as sheet glass mother metal that how many glass-pane shaping product are index
0during ratio with the total area A of all glass molded articles, be expressed from the next.
β=A/A
0…（1）
At this, A
0be the area before the shaping of sheet glass mother metal, A is the total area of all glass molded articles.The value of β is larger, and the productivity of material is higher.
If the thickness of sheet glass mother metal is t
0, the thickness of glass molded article is t, and the width of sheet glass mother metal is w
0, the width of glass molded article is w, and the length of sheet glass mother metal is L
0, when the length sum of all glass molded articles is L, A
0be expressed from the next with A.
A
0=L
0×w
0…（2）
A=L×w…（3）
If the feed speed of sheet glass mother metal during stable formation is V
0, the forming speed of glass ribbon is V.Extensibility α is sheet glass mother metal and the ratio of the thickness of glass molded article, is therefore expressed from the next.
α=t
0/t…（4）
In addition, according to the principle pulling into shape again, following formula is set up.
α≒w
0/w…（5）
In addition, in stable formation, the volume of the sheet glass mother metal of time per unit supply is equal with the cumulative volume of the glass-pane shaping product that time per unit is produced.Thus, the condition of following formula is set up.
t
0×w
0×V
0=t×w×V…（6）
As described above, when being shaped beginning and at the end of being shaped, the L1 part of Fig. 5 cannot form the glass molded article as goods.Be equivalent to the waste of producing the part of initial stage waste and the part in the rearward end side grasping device holding of sheet glass mother metal in the side, leading section of sheet glass mother metal.Therefore, the maximum value L of the sheet glass mother metal of the invalid essence that can effectively use can not be become when being shaped and starting
01be expressed from the next.
L
01=L
0-L
1…（7）
Therefore, the maximum area A of glass ribbon can be become
1be expressed from the next.
A
1=α×L
01…（8）
In addition, becoming to become the part of glass-pane shaping product length at the end of being shaped in the part of glass ribbon equals the maximum value of the length sum of all glass-pane shaping product, therefore, it is possible to suppose with following formula.
L=A
1/w-L
1…（9）
According to this formula, the total area A of all glass molded articles can be expressed from the next.
A=A
1-L
1×w…（10）
According to above relational expression, β can be expressed from the next.
β=α（1-L
1/L
0）-L
1/（α×L
0）…（11）
Therefore, the method making the productivity β of material improve comprise increase extensibility α method, reduce the minimum length L that cannot effectively be shaped
1method, increase the length L of sheet glass mother metal
0these 3 kinds of methods of method.But reducing cannot the minimum length L of valid shaping
1method be the method alongst as far as possible reducing heating unit 103 or annealing device 105 in the embodiment of Fig. 5, need anxious heating, chilling device but, then the quality that the shaping pulling into shape causes also declines.Therefore, there is the limit in its enforcement.In addition, the length L of alternative increase sheet glass mother metal
0method be the method for the size as far as possible increasing sheet glass mother metal supply portion, the height of manufacturing installation becomes very high, and efficiency is bad.And the carrying of this sheet glass mother metal, transport, process are also difficult.There is the length L of in fact sheet glass mother metal
0for 3m, cannot the minimum length L of valid shaping
1for the situation that 1m is such.As increasing the method that the replacement means of size of sheet glass mother metal supply portion and the method that proposes are patent documentations 2, but there is the problem in quality in these glass-pane shaping product as described above.
Therefore, prior art adopts as far as possible large extensibility α for target and developing in order to the productivity β improving material.
On the other hand, in the present invention, along with the requirement of the glass pole sheet moulding article of wide cut, the manufacture method specially by providing extensibility α little, makes the production of the wide cut glass pole sheet moulding article of high-quality become possibility.
When setting the width of desired glass-pane shaping product as w, the width w of sheet glass mother metal 1
0be expressed from the next.
w
0≒α×w…（12）
That is, the width of sheet glass mother metal 1 determines the size of the width of manufacturing installation, and therefore relative to the width w of the glass-pane shaping product required, extensibility is little means that the manufacturing installation by width is little can be produced.Pulling in shape again, in order to obtain the glass molded article of high-quality, the control of the control of the temperature distribution of width or the movement of glass ribbon or traction force is most important, and the situation that therefore width of device can not be wide can bring the production of high quality glass.And the manufacturing installation that width is little also can realize cost degradation.
Manufacture in the method for glass-pane shaping product at the manufacturing installation 20 molding glass band 2 of the glass-pane shaping product by the structure shown in Fig. 1, investigate before application, be equivalent to the sheet glass mother metal that extends tubular and supply the situation of a flat sheet glass mother metal, and being equivalent to the glass-pane shaping product extending tubular and the situation obtaining flat glass-pane shaping product.
In other words, set extensibility α smaller and mean that the productivity of material is little.In the present invention, in order to obtain the productivity of material to greatest extent, also provide the method extending sheet glass mother metal length L.In the present invention, because extensibility α is little, therefore when manufacturing the very thin plate of glass of below thickness 0.1mm, the thickness of sheet glass mother metal can be set to below 0.3mm.The sheet glass of below 0.3mm has flexibility and is easily wound into tubular.Therefore, it is possible to implement cannot implement in the prior art the sheet glass mother metal based on tubular draw moulding method again.Further, compared with the past, sheet glass mother metal length L can be extended tremendously.
In addition, the viewpoint of productivity is not only the viewpoint of material.It is also a very large problem that time per unit can produce the so temporal productivity of how many glass-pane shaping product (hereinafter referred to as " time productivity ").Pulling in shape again based on existing method, the continuous supply of sheet glass mother metal cannot be carried out in fact, therefore except the pure production time, also produce change sheet glass mother metal time, reach glass-pane shaping product and become time needed for stabilization before the stable molding condition of non-defective unit, time productivity reduces.In the embodiment in the past shown in Fig. 5, this replacing construction and stabilizing take frequently produce, and are difficult to raising time productivity.
On the other hand, setting smaller in the manufacture method of extensibility α as the present invention, can use the sheet glass mother metal of tubular, therefore productivity improves also tremendously the time.
In the use of the sheet glass mother metal of tubular, i.e. L
0under very large manufacturing condition, preferred development shortened L as far as possible in the past
1the manufacturing installation of structure, in contrast, by extending L a little
1, large impact can not be caused on productivity, and the high-quality of glass molded article can be realized, such as, can produce the glass-pane shaping product that the compressed value after reducing fictive temperature is little.
From above background, when using the manufacturing installation 20 of glass-pane shaping product of present embodiment to form, be set to that the extensibility less than the extensibility set in building mortion drawing again in the past forms.Specifically, as extensibility, be set to more than 1.5 and be less than 10, preferably be set to more than 1.5 and less than 7, more preferably be set to more than 1.5 and less than 5, be preferably set to more than 1.5 further and the extensibility of less than 4 forms, device need not be increased to necessary above and can produce thus.
It should be noted that, when extensibility is less than 1.5, the ratio of stretching is too low, nonsensical in practicality.It should be noted that, when extensibility is more than 5, although the effect of the present invention of the glass-pane shaping product that the width obtaining producing requirement is wide, but compared with the situation being less than 5 with extensibility, there is the width increase of sheet glass mother metal and the situation of operability variation and producing apparatus become large situation.Therefore, extensibility less than 5 becomes preferred scope.
The thickness of slab (mm) of the sheet glass mother metal 1 when following table 1 represents that extensibility α is less than 5, width (m) and the thickness of slab (mm) of glass-pane shaping product, the relation of width (m).
[table 1]
If like that extensibility α as shown in table 1 is less than 5, even if then about the wide size be set as lower than 2m of plate of sheet glass mother metal 1, also can at 0.2 ~ 0.6m(200mm ~ 600mm) scope in the width of glass-pane shaping product that obtains of increase.And, by using the sheet glass mother metal 1 be made up of sheets of glass, the glass-pane shaping product of thickness of slab 0.03mm ~ 0.1mm can be produced.
In addition, if the glass-pane shaping product obtained by manufacturing process of the present invention, then for what is called draw again manufacturing process original shown in the effect obtaining the glass ribbon of excellent flatness can directly inherit, therefore, it is possible to obtain the wide and glass-pane shaping product of the high-quality that flatness is high of width.
Therefore, by employing the above-mentioned manufacturing process of the manufacturing installation 20 of the glass-pane shaping product of present embodiment, need not turn to necessary above by large-scale for the manufacturing installation 20 of glass-pane shaping product and the flatness on surface high and the glass ribbon that width is large and glass-pane shaping product can be produced.
It should be noted that, in the manufacturing installation 20 of the glass-pane shaping product of the embodiment shown in Fig. 1, be configured to arrange winch spool 10 after shut-off device 9, glass ribbon 2 is formed as rectangular tubular and reels, but also glass ribbon 2 can be cut into necessary length, do not reel to winch spool 10, and obtain the sheet glass of flat so-called monolithic.
In addition, the manufacturing installation 20 of glass-pane shaping product is not limited to the vertical structure shown in Fig. 1, as long as glass ribbon stretch zones 2A can be maintained, structure that is mother metal feedway 5, heating unit 6, annealing device 7, pulling device 8 is inclined or horizontal arrangement also can be formed as.
Fig. 2 is the figure of the second embodiment of the manufacturing installation representing glass-pane shaping product of the present invention, in the manufacturing installation 30 of the glass-pane shaping product of this second embodiment, for the key element that the key element of the manufacturing installation 20 of the glass-pane shaping product of the first embodiment with aforementioned explanation is identical, mark same symbol and omit the detailed description of these key elements.
In the manufacturing installation 30 of the glass-pane shaping product of present embodiment, and the difference of the manufacturing installation 20 of aforesaid glass-pane shaping product is the points being provided with glass ribbon end shut-off device (the second shut-off device) 22,22 between pulling device 8 and shut-off device 9.
Glass ribbon end shut-off device 22 possesses forming apparatus and the bending shut-off device of the line of cutting unit etc., be built-in with: for the glass ribbon 2 by its inside, the cutting unit of line can be formed continuously in the position that have left predetermined distance along its length direction from the ora terminalis of glass ribbon 2; The bending shut-off devices such as the roller arrangement that the ora terminalis side of glass ribbon 2 is cut off along this line effect by shearing force.The cutting unit being built in this shut-off device 9 is identical with the known glass ribbon end shut-off device that bending shut-off device and the manufacturing line of general sheet glass possess, therefore detailed.As an example of bending shut-off device, the both sides that can be set forth in line arrange multiple roller arrangement in the mode at the table back side of clamping glass band 2, utilize these roller arrangements to make shear action cut off the device of the both end sides of glass ribbon 2 along line bending in glass ribbon 2.It should be noted that, glass ribbon end shut-off device 22 is not limited to the unitized construction of cutting unit and bending shut-off device, also can be the chopping up apparatus of the mode not forming line and cut off by laser beam, or the shut-off device of the arbitrary structure such as the device directly fused by laser beam.
Sheet glass mother metal 1 is sent to heating unit 6 from mother metal feedway 5 by the manufacturing installation 30 of the glass-pane shaping product of described structure in the same manner as the manufacturing installation 20 of the glass-pane shaping product of aforesaid first embodiment, make it soften and carry out tractive and form glass ribbon stretch zones 2A, produce glass ribbon 2, and glass ribbon 2 is wound in winch spool 10 side, these aspects are identical structure.
In the manufacturing installation 30 of glass-pane shaping product, after sheet glass mother metal 1 is formed as glass ribbon 2 and have passed pulling device 8, by glass ribbon end shut-off device 22, the both end sides of glass ribbon is cut off at Rack place, the outside of the part of cut-out is separated with the central Glass band 2E of center side as end 2D.Only this center side glass ribbon 2E is wound in winch spool 10, circumvolution becomes tubular and is contained in winch spool 10.The moment reaching necessary amount in circumvolution in the center side glass ribbon 2E of winch spool 10 is cut off by the width of shut-off device 9 along center side glass ribbon 2E, can obtain the center side glass ribbon 2E being wound into tubular except the 2D of end thus.
This center side glass ribbon 2E is owing to being separated removing by producing the high end 2D of possibility that is concavo-convex or inclined wall, therefore width two end edge portion divides level and smooth and does not have concavo-convex, and it is high and improve the center side glass ribbon of the high-quality of surfaceness to obtain Flatness by drawing manufacturing process to obtain again.In addition, can obtain is glass-pane shaping product and the glass infuser 18 of tubular to winch spool 10 circumvolution by center side glass ribbon 2E.
Owing to there is the end 2D be removed in the present embodiment, therefore the cylinder 12,12 of pulling device 8 preferably uses the method only contacted with end 2D in order to tractive glass ribbon 2.This is the quality decline of the glass ribbon caused in order to avoid the contact because of cylinder 12,12.
In addition, do not worry glass ribbon end quality and require the glass ribbon end of high strength time, preferably do not implement the manufacture method of the mode of the cut-out of the end of glass ribbon.This is because when not cutting off end, end becomes the forging plane after heating shaping.
Fig. 3 is the figure of the 3rd embodiment of the manufacturing installation representing glass-pane shaping product of the present invention, in the manufacturing installation 50 of the glass-pane shaping product of the 3rd embodiment, for the key element that the key element of the manufacturing installation 30 of the glass-pane shaping product of the second embodiment with aforementioned explanation is identical, mark same symbol, omits the detailed description of these key elements.
In the manufacturing installation 50 of the glass-pane shaping product of present embodiment, and the difference of the manufacturing installation 30 of aforesaid glass-pane shaping product is: between mother metal feedway 5 and heating unit 6, feedway 5 is the devices of the sheet glass mother metal that supply is released from the tubular sheet glass mother metal 1 being wound into cylinder, exists the point of the tension force of the sheet glass mother metal 1 laid out between feedway 5 and heating unit 6 independent of the unit 21 adjusted in tension of the glass ribbon produced by pulling device 8; And possess the glass ribbon between shut-off device 9 and winch spool 10 is reeled as the wind2 (winch spool 10) of tubular glass-pane shaping product, exist the point of the tension force of glass ribbon 2E independent of the unit 23 adjusted in tension of the glass ribbon produced by pulling device 8 in the first shut-off device 9 side of wind2.At this, the former unit 21 is called the first tensioning cutting mechanism 21, the unit 23 of the latter is called the second tensioning cutting mechanism 23.
First tensioning cutting mechanism 21 is made up of the first paired tensioning cylinder 25,25 of configuration adjacent one another are and the second paired tensioning cylinder 26,26 of configuration adjacent one another are.
First tensioning cylinder 25,25, respectively by bolster 27 horizontal supporting, is configured between mother metal feedway 5 and heating unit 6, and the second tensioning cylinder 26,26 is by bolster 28 horizontal supporting, is configured between the first tensioning cylinder 25,25 and heating unit 6.By described structure, first the sheet glass mother metal 1 of releasing from mother metal feedway 5 is clamped by the first tensioning cylinder 25,25 and is passed through between them, is then clamped by the second tensioning cylinder 26,26 and be have passed between them, being then supplied to heating unit 6.
Second tensioning cutting mechanism 23 is made up of the 3rd paired tensioning cylinder 40,40 of configuration adjacent one another are and the 4th paired tensioning cylinder 31,31 of configuration adjacent one another are.
3rd tensioning cylinder 30,30, respectively by bolster 32 horizontal supporting, is configured between shut-off device 9 and winch spool 10, and the 4th tensioning cylinder 31,31 is by bolster 33 horizontal supporting, is configured between the 3rd tensioning cylinder 40,40 and winch spool 10.By described structure, be configured to the glass ribbon 2E after have passed shut-off device 9 and first clamped by the 3rd tensioning cylinder 40,40 and by between them, then clamped by the 4th tensioning cylinder 31,31 and be have passed between them, then arrive winch spool 10.
With regard to the manufacturing installation 50 of the glass-pane shaping product of present embodiment, during sheet glass mother metal 1 is mobile between the first tensioning cylinder 25,25 and second tensioning cylinder 26,26, even if the tension force of sheet glass mother metal 1 relaxes a little from normal value, also normal tension force can be applied to by the sheet glass mother metal 1 from the second tensioning cylinder 26,26 to the part of heating unit 6.
Such as, when sending sheet glass mother metal 1 to heating unit side with speed more than necessity from mother metal feedway 5, when the tension force of glass ribbon relaxes in the inside of heating unit 6, at the private side of heating unit 6, can have an impact to the shaped state of glass ribbon stretch zones 2A, cannot implement to be shaped with required extensibility.Relative to this, if arrange tensioning cutting mechanism 21 at the leading portion of heating unit 6 in advance, even if then sheet glass mother metal 1 increases from the feed rate of mother metal feedway 5, between the first tensioning cylinder 25 and the second tensioning cylinder 26, sheet glass mother metal 1 exists with lax state, therefore, it is possible to make the supply condition stabilization of the sheet glass mother metal 1 being supplied to heating unit 6, thus the heated condition of glass ribbon and the stabilization of stretched state can be realized.
In the manufacturing installation 50 of the glass-pane shaping product of present embodiment, during glass ribbon 2E is mobile between the 3rd tensioning cylinder the 40,40 and the 4th tensioning cylinder 31,31, even if the tension force of glass ribbon 2E relaxes a little from normal value, also can to by applying normal tension force from the 4th tensioning cylinder 31,31 to the glass ribbon 2E of the part of winch spool 10.
As the manufacturing installation 50 of glass-pane shaping product, tensioning cutting mechanism 23 is arranged on the leading portion of winch spool 10, thus in stable conditionization of the glass ribbon 2E from heating unit 6 side direction winch spool 10 side tractive can be made, stabilization when can realize the stretched state of glass ribbon 2E and reel to the cylinder of winch spool 10.And, can, with the glass ribbon of tension force circumvolution accurately 2E, therefore the position of glass ribbon 2E can not be made to offset and circumvolution exactly relative to winch spool 10 for winch spool 10.
As described above, after glass ribbon 2 have passed pulling device 8, during reeling to winch spool 10, even if when the translational speed of the glass ribbon 2 by pulling device 8 and winch spool 10 reel glass ribbon 2E speed between create a difference, tensioning cutting mechanism 23 also can absorb this residual quantity, therefore, it is possible in stable conditionization of the glass ribbon stretch zones 2A making the inside of heating unit 6 generate and suppress extensibility change.So in the manufacturing installation 50 of the glass-pane shaping product of present embodiment, also can obtain the glass infuser 51 of the center side glass ribbon 2E to winch spool 10 circumvolution tubular.
In addition, except above-mentioned embodiment, also can be following mode, that is: be used in the various tensioning cutting mechanisms used in the carrying technology and wound roll material (WEB) treatment technology that the winding that comprises plastic film, paper, cloth etc. lays out, and can control respectively the tension force of the glass ribbon 2A in heating unit 6, the sheet glass mother metal 1 of unwinding tubular tension force, glass ribbon is wound into the tension force of tubular.
Fig. 4 is the figure of the 4th embodiment of the manufacturing installation representing glass-pane shaping product of the present invention, in the manufacturing installation 60 of the glass-pane shaping product of the 4th embodiment, for the key element that the key element of the manufacturing installation 20 of the glass-pane shaping product of the first embodiment with aforementioned explanation is identical, mark same symbol, omits the detailed description of described key element.
In the manufacturing installation 60 of the glass-pane shaping product of present embodiment, from the difference of the manufacturing installation 20 of aforesaid glass-pane shaping product be: between mother metal feedway 5 and heating unit 6, loading bending cylinder etc., to carry the structure of cylinder 70 different; The structure examining Check device 52 and film supplying machine 53 is provided with different between annealing device 7 from pulling device 8.And the structure being provided with the point of multiple pulling device 8 is also different.
The manufacturing installation 60 of the glass-pane shaping product of the structure shown in Fig. 4 is in the same manner as the manufacturing installation 20 of the glass-pane shaping product of aforesaid first embodiment, from mother metal feedway 5, laminal sheet glass mother metal 1 is sent to heating unit 6, make glass ribbon softening and carry out tractive, thus glass ribbon stretch zones can be formed and form glass ribbon 2, and by glass ribbon 2 to winch spool 10 side winding, be equivalent structure about said structure.
In the manufacturing installation 60 of the glass-pane shaping product of present embodiment, be configured to for have passed the glass ribbon 2B after annealing device 7, utilize inspection Check device 52 checked macroscopic irregularity, thickness of slab distribution, plate wide etc. after, can from the film supplying machine 53 at reel member 55 circumvolution resin molding 56 to the surperficial delivery film of glass ribbon 2.
Be arranged on the right on of pulling device 8 to the position of the two sides delivery film 56 of glass ribbon 2 from film supplying machine 53.When to the two sides delivery film 56 of glass ribbon 2, they clamped by the cylinder 12,12 of pulling device 8 and presses, thus obtaining the compound glass band 57 being pasted with film 56 on the two sides of glass ribbon 2.
In the manufacturing installation 60 of the glass-pane shaping product of present embodiment, compound glass band 57 winding can be contained in winch spool 10, therefore, it is possible to obtain the compound glass band 57 of the state being wound into cylinder.And, the glass infuser 58 as glass-pane shaping product compound glass band 57 being rolled into tubular to winch spool 10 can be obtained.
Understand the present invention in detail with reference to specific example, but the situation that can apply various change or amendment under the prerequisite not departing from the spirit and scope of the invention is self-evident to those skilled in the art.
The Japanese patent application 2010-278577 that the application proposed based on December 14th, 2010, and its content is incorporated herein as reference.
Industrial utilizability
Technology of the present invention can be suitable for widely in the manufacture of glass for building purposes, vehicle glass, optics glass, medical glass, display unit glass, other general glassworks.
Nomenclature
1 ... sheet glass mother metal, 20, 30, 50, 60 ... the manufacturing installation of glass-pane shaping product, 2A ... glass ribbon stretch zones, 2B ... glass ribbon, 2D ... glass ribbon end, 2E ... center side glass ribbon, 3 ... reel, 5 ... mother metal feedway, 6 ... heating unit, 7 ... annealing device, 8 ... pulling device, 9 ... shut-off device (the first shut-off device), 10 ... winch spool, 12 ... cylinder, 15, 18 ... glass infuser, 16 ... sheets of glass, 21 ... first tensioning cutting mechanism, 22 ... glass ribbon end shut-off device (the second shut-off device), 23 ... second tensioning cutting mechanism, 25 ... first tensioning cylinder, 26 ... second tensioning cylinder, 31 ... 4th tensioning cylinder, 40 ... 3rd tensioning cylinder, 51 ... glass infuser, 52 ... inspection Check device, 53 ... film supplying machine, 56 ... resin molding, 57 ... compound glass band, 58 ... glass infuser, 70 ... carrying cylinder.
Claims (13)
1. a manufacture method for glass-pane shaping product, wherein,
Comprise: sheet glass mother metal is softened and with wide this sheet glass mother metal and the thinning mode of thickness of slab stretches and be configured as the stretching process of glass ribbon of narrowing of plate compared with this sheet glass mother metal; And described glass ribbon is made the cut-out operation of glass-pane shaping product along the width cut-out of described glass ribbon,
The extensibility represented by the ratio of the thickness of slab of described sheet glass mother metal and the thickness of slab of described glass-pane shaping product is more than 1.5 and is less than 10,
Described sheet glass mother metal is the tubular sheet glass mother metal being wound into cylinder, lays out foliated glass and this foliated glass is softened from this tubular sheet glass mother metal.
2. manufacture method as claimed in claim 1, wherein, the thickness of slab of described sheet glass mother metal is below 0.3mm.
3. manufacture method as claimed in claim 1 or 2, wherein, the plate of described glass-pane shaping product is wide is more than 200mm.
4. manufacture method as claimed in claim 1, wherein, the plate of described sheet glass mother metal is wide is more than 300mm.
5. manufacture method as claimed in claim 1, wherein, the thickness of slab of described glass-pane shaping product is below 0.1mm.
6. manufacture method as claimed in claim 1, wherein, is wound into cylinder by described glass ribbon and forms tubular glass-pane shaping product.
7. manufacture method as claimed in claim 1, wherein, comprises the operation cut off along the length direction of this glass ribbon the width end of glass ribbon between described stretching process and described cut-out operation.
8. manufacture method as claimed in claim 1, wherein, does not comprise the operation cut off along the length direction of this glass ribbon the width end of glass ribbon between described stretching process and described cut-out operation.
9. a manufacturing installation for glass-pane shaping product, for the manufacture method of the glass-pane shaping product according to any one of claim 1 ~ 8, the manufacturing installation of described glass-pane shaping product possesses:
The feedway of sheet glass mother metal;
Thermoplastic is carried out to the sheet glass mother metal supplied from described feedway and forms the heating unit of glass ribbon;
The pulling device of glass ribbon described in tractive; And
Glass ribbon after described tractive is cut off and makes the first shut-off device of glass-pane shaping product,
Described feedway is the device of the described sheet glass mother metal that supply lays out from the tubular sheet glass mother metal being wound into cylinder.
10. manufacturing installation as claimed in claim 9, wherein, is provided with the unit adjusted independent of the tension force of the glass ribbon produced by described pulling device by the tension force of the described sheet glass mother metal laid out between described feedway and described heating unit.
11. manufacturing installations as claimed in claim 9, wherein, possess the second shut-off device being arranged on and removing between described pulling device and described first shut-off device and by the width both ends of glass ribbon.
12. manufacturing installations as claimed in claim 9, wherein, possess the wind2 described glass ribbon being wound as tubular glass-pane shaping product, and the described first shut-off device side of described wind2 is provided with the unit adjusted independent of the tension force of the glass ribbon produced by described pulling device by the tension force of glass ribbon.
13. manufacturing installations as claimed in claim 9, wherein, possess and to be arranged between described heating unit and described pulling device and to the annealing device having carried out thermoplastic glass ribbon and carry out slow cooling.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010278577 | 2010-12-14 | ||
| JP2010-278577 | 2010-12-14 | ||
| PCT/JP2011/078479 WO2012081503A1 (en) | 2010-12-14 | 2011-12-08 | Method for manufacturing molded glass plate, and device for manufacturing molded glass plate |
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| Publication Number | Publication Date |
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| CN103261107A CN103261107A (en) | 2013-08-21 |
| CN103261107B true CN103261107B (en) | 2015-11-25 |
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| CN201180060292.2A Active CN103261107B (en) | 2010-12-14 | 2011-12-08 | The manufacture method of glass-pane shaping product and the manufacturing installation of glass-pane shaping product |
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| Country | Link |
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| JP (1) | JP5019012B2 (en) |
| KR (1) | KR101845575B1 (en) |
| CN (1) | CN103261107B (en) |
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| JP2015530958A (en) * | 2012-05-30 | 2015-10-29 | コーニング インコーポレイテッド | Apparatus and method for inspecting flexible glass ribbon |
| WO2014159168A1 (en) | 2013-03-14 | 2014-10-02 | Corning Incorporated | Methods for fabricating and cutting flexible glass and polymer composite structures and apparatus |
| DE102014100750B4 (en) | 2013-04-30 | 2023-08-17 | Schott Ag | Process for the manufacture of glass components |
| DE102013105734A1 (en) | 2013-06-04 | 2014-12-04 | Schott Ag | Process for recovering glass |
| DE102013109443B4 (en) * | 2013-08-30 | 2017-06-22 | Schott Ag | Process for drawing glass ribbons |
| DE102015118308B4 (en) * | 2014-10-29 | 2023-07-27 | Schott Ag | Method for producing a ceramizable green glass component and ceramizable green glass component and glass ceramic article |
| CN107207309B (en) * | 2014-11-26 | 2020-08-18 | 康宁股份有限公司 | Thin glass sheets and systems and methods for forming thin glass sheets |
| JP6607017B2 (en) * | 2015-12-11 | 2019-11-20 | 日本電気硝子株式会社 | Manufacturing method of glass ribbon |
| CN115710084A (en) * | 2022-11-03 | 2023-02-24 | 长飞光纤光缆股份有限公司 | Glass plate directional stretching device and stretching method |
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| JP2007126302A (en) * | 2005-11-01 | 2007-05-24 | Furukawa Electric Co Ltd:The | Manufacturing method of glass string |
| CN101157514A (en) * | 2006-09-25 | 2008-04-09 | 佳能株式会社 | Manufacturing method of drawn glass member, manufacturing method of spacer, and manufacturing method of image display apparatus |
| CN101528617A (en) * | 2006-10-24 | 2009-09-09 | 日本电气硝子株式会社 | Glass ribbon producing apparatus and process for producing the same |
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| CN102448900B (en) * | 2009-07-30 | 2015-05-27 | 日本电气硝子株式会社 | Glass ribbon and process for production thereof |
| CN102471128B (en) * | 2009-08-07 | 2014-05-07 | 旭硝子株式会社 | Method for manufacturing ultra-thin glass substrate |
| JP5500498B2 (en) * | 2009-10-29 | 2014-05-21 | 日本電気硝子株式会社 | Manufacturing method of glass film |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007126302A (en) * | 2005-11-01 | 2007-05-24 | Furukawa Electric Co Ltd:The | Manufacturing method of glass string |
| CN101157514A (en) * | 2006-09-25 | 2008-04-09 | 佳能株式会社 | Manufacturing method of drawn glass member, manufacturing method of spacer, and manufacturing method of image display apparatus |
| CN101528617A (en) * | 2006-10-24 | 2009-09-09 | 日本电气硝子株式会社 | Glass ribbon producing apparatus and process for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103261107A (en) | 2013-08-21 |
| WO2012081503A1 (en) | 2012-06-21 |
| TW201228951A (en) | 2012-07-16 |
| KR101845575B1 (en) | 2018-04-04 |
| KR20130130741A (en) | 2013-12-02 |
| JP5019012B2 (en) | 2012-09-05 |
| JPWO2012081503A1 (en) | 2014-05-22 |
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