TW201228951A - Method for manufacturing molded glass plate, and device for manufacturing molded glass plate - Google Patents

Abstract

The present invention relates to a method for manufacturing a molded glass plate, including a drawing step for softening and drawing a glass plate preform to a plate width and plate thickness that are less than those of the glass plate preform to mold a glass ribbon, and a cutting step for cutting the glass ribbon in the width direction thereof to form a molded glass plate. The draw ratio, represented by the ratio between the thickness of the glass plate preform and the thickness of the molded glass plate, is from 1.5 to less than 10.

Description

201228951 6. TECHNOLOGICAL FIELD OF THE INVENTION The present invention relates to a method and apparatus for producing a glass sheet molded article by softening a base material comprising a glass sheet and forming a glass ribbon having a sheet thickness thinner than the base material . [Prior Art] A glass plate from a substrate use of a conventional semiconductor element, such as a display use, has always required a flatness of the surface and a good surface roughness. However, if a thin glass plate is produced by a floating method or the like which is widely used as a method for producing a glass plate, the glass plate for the above-mentioned use is preferably a surface of the glass plate after the polishing. The flatness and surface roughness of the surface are increased. Therefore, various mechanisms for improving the precision of the ground glass plate are provided. However, in order to improve the polishing accuracy, the polishing time or the man-hour is more expensive than the current state, so that there is a problem in terms of manufacturing cost and equipment cost. Therefore, there is known a method of re-drawing a glass sheet using a base material comprising a glass sheet having a specific thickness and having a surface roughness of a certain degree (hereinafter referred to as "glass sheet base material"). By using a glass plate which is softened by heating and softened, it is possible to produce a glass sheet having a desired thickness and a good surface condition (see, for example, Patent Documents 1 and 2). This re-drawing method is a method in which a thick glass base material (for example, a thickness of about 5 mm) is heated to a softening point or more and is elongated to form a cross section (for example, a thickness of about 1 mm). Known by everyone. Fig. 5 shows a prior art example of such a re-drawing forming apparatus. The re-drawing forming apparatus 100 shown in Fig. 5 includes a rectangular shape in which one side is vertically suspended to support the longitudinal direction. 160860.doc 201228951 The glass plate base material 101 is provided on the base material supply device 102' which is movably disposed on the surface. The slow cooling device 105 of the heating device i below the supply device 1〇2 and the stretching roller 丨〇6 for stretching the softened portion of the glass plate base material 1〇1 downward are extended. In the above-mentioned re-drawing forming apparatus 10, the glass plate base material 1〇1 is generally used in a thickness of several mm, a width of from several tens of mm to about 1 m, and a thickness of about several hundred to several thousand mm. In the glass plate, a glass ribbon 107 having a width of from several mm to several tens of mm and a thickness of about a few minutes is formed from the base material of the glass plate. Further, in the re-drawing forming apparatus 1 shown in FIG. 5, a glass cutting device 1 8 is provided below the stretching roll 106, and the glass ribbon 107 can be cut by a desired length. A glass sheet molded article 109 of a desired length. CITATION LIST Patent Literature Patent Literature 1: JP-A-2007-126302 Patent Document 2: Japanese Patent Laid-Open No. 2009-242190 In the case of the re-drawing forming apparatus 1 of the prior structure, when the glass base material is heated in a state of being stretched by the stretching device 6 to soften it, and the glass ribbon 107 is stretched again, it is inevitable The problem of wasted on the front side and the back side of the glass ribbon. For example, there is a problem that the portion which is softened by the heating device i 〇3 and softened during the period from the start of production to the state of re-drawing is not good. 160860.doc 201228951 Quality of the glass sheet molded article The shape of the glass ribbon And the temperature distribution is unstable. The reason is the glass inside the heating device.

A glass sheet molded product 丨〇9 was obtained as a good product. At 4'-103,

Since the glass base material 101 is from the claw portion of the glass ribbon to the portion of the cutting device, there is also a problem that the remaining portion of the glass ribbon is wasted. Of course, depending on the length of the waste portion such as the size of the re-drawing device, when the glass plate base material having a total length of 3 m is used, the front end side is about 1 m and the rear end side is about 1 m. That is, in the case of forming the glass sheet molded article 109 by using the re-drawing forming apparatus 1 of the prior structure shown in Fig. 5, since the waste of the material is inevitably present, the productivity is generally improved, and the glass plate base material is generally used. The ratio of the sheet thickness (t〇) of the crucible 1 to the sheet thickness (1) of the glass sheet molded article 109 (t〇/t) indicates that the elongation is set as high as possible, and the production of the glass sheet molded article 1 to 9 is performed. For example, the manufacturing conditions described in the prior patent document 1 are 5 to 7 mm with respect to the glass plate base material 101, the thickness of the glass plate product is set to 〇·38 to 0.64 mm, and the elongation is set to 1〇~15. Further, the plate width of the base material of the glass plate is about 25 to 70 mm. However, in recent years, the use of glass electrode sheets has become strong in display applications, lighting applications, solar cell coverage I60860.doc 201228951 glass, etc., but glass electrode sheets for such applications require a thickness of 0.2 mm or less or n mm or less. And the width is 200 mm or more or 300 mm or more. However, in the case of producing a glass electrode sheet by the above-described elongation drawing method, the width of the glass sheet base material 101 is also changed in accordance with the elongation. That is, the width of the glass base material divided by the width of the glass molded article is approximately equal to the elongation. Thus, the glass sheet base material 101 needs to have a width corresponding to the elongation. For example, in order to obtain a glass electrode sheet having a width of 200 mm or more, it is necessary to use a glass sheet base material 10 having a width of more than 2 m, which causes a problem of enlargement of production equipment. Further, when the production equipment is increased in size, the movement control of the base material supply device 1〇2 and the temperature control in the heating device 103 require high precision, and thus there is a problem that the cost of the equipment is high. On the other hand, as a result of the effective use of the glass plate base material, as disclosed in Patent Document 2, a method of re-drawing another glass plate base material at the end portion of the glass plate base material is proposed, but the following problems exist. : The quality of the obtained glass sheet molded article is lowered due to the interface of the glass plate base material, and the quality of the glass substrate for display use or the like cannot be satisfied. One of the objects of the present invention is to provide a glass sheet molded article in which the width of the glass sheet base material is not required to be large, easy to implement, and which can suppress the cost of the apparatus when the wide-width glass sheet molded article is produced by re-drawing. Production method. Further, an object of the present invention is to provide a method for producing a glass sheet molded article which can continuously supply a glass plate base material to 160860.doc 201228951, which can produce a wide-width glass sheet molded article without reducing productivity. Further, an object of the present invention is to provide a production apparatus for a glass sheet molded article which can provide a high quality glass sheet product by carrying out the above-described method for producing a glass sheet molded article. TECHNICAL FIELD The present invention relates to a method for producing a glass sheet molded article, the method comprising: an extending step of softening a glass sheet base material, and having a narrower plate width and a thicker plate than the glass sheet base material a glass ribbon base material is formed by stretching the glass sheet base material thinly; and a cutting step of cutting the glass ribbon in a width direction thereof to form a glass sheet molded article; and the sheet thickness of the glass sheet base material is as described above The ratio of the thickness of the glass plate molded article indicates that the elongation is 15 or more and less than 1 〇. In the production method of the present invention, it is preferable that the thickness of the glass plate base material is 0.3 mm or less. In the production method of the present invention, it is preferable that the glass sheet molded article has a sheet width of 200 mm or more. In the production method of the present invention, it is preferred that the glass plate base material has a plate width of 300 mm or more. In the production method of the present invention, it is preferable that the thickness of the glass plate molded article is not more than 1 mm. In the production method of the present invention, it is preferable that the glass plate base material is a light-weight glass plate base material which is wound up and rolled out from the roll-shaped glass plate base material to soften the sheet glass. In the manufacturing method of the present invention, it is preferable that the glass ribbon is wound into a roll and 160860.doc 201228951 is a roll-shaped glass sheet molded article β in the manufacturing method of the present invention, between the extending step and the cutting step. The step of cutting the end portion in the width direction of the fragile tape along the longitudinal direction of the glass ribbon may also be included. In the manufacturing method of the present invention, preferably, the step of cutting the width direction end portion of the glass ribbon in the longitudinal direction of the glass ribbon is not included between the extending step and the cutting step. The present invention relates to a manufacturing apparatus for a glass sheet molded article for carrying out the above-described method for producing a glass sheet molded article, the manufacturing apparatus comprising: a supply device for a glass plate base material; and a heating device for supplying the supply device from the supply device The glass plate base material is heated and softened to form a glass ribbon; the stretching device stretches the glass ribbon; and the first cutting device cuts the stretched glass ribbon to form a glass sheet molded article. In the manufacturing apparatus of the present invention, it is preferable that the supply means is a device for supplying the glass plate base material which is taken up from a roll-shaped glass plate base material of a roll. In the manufacturing apparatus of the present invention, preferably, the tension between the supply device and the heating device is separately adjusted from the tension generated by the stretching device to the glass ribbon, and the tension of the rolled glass substrate is separately adjusted. The institution. The manufacturing apparatus of the present invention may further include a second cutting device 1 provided between the stretching device and the first cutting device, and removing both end portions in the width direction of the glass ribbon. The manufacturing apparatus of the present invention may further include a winding device that winds the glass ribbon into a 玻璃i-shaped glass sheet molded article; and may also be used in the above-described first-cutting device of the winding device There is a mechanism for individually adjusting the tension of the glass ribbon separately from the tension generated by the above-mentioned stretching device for the glass ribbon 160860.doc 201228951. The manufacturing apparatus of the present invention may further comprise a slow cooling device disposed between the heating device and the stretching device and slowly cooling the glass ribbon heated and softened. Advantageous Effects of Invention The present invention is a method for producing a glass sheet molded article, the method comprising: an extending step of softening a glass sheet base material, and having a narrower plate width and a thinner plate thickness than the glass plate base material a glass ribbon base material is stretched to form a glass ribbon; and a cutting step of cutting the glass ribbon in a width direction thereof to form a glass sheet molded article; and the thickness of the glass sheet base material and the glass sheet The ratio of the thickness of the molded article indicates that the elongation is 1.5 or more and less than 10'. Therefore, even if the width of the desired glass sheet molded product is 2 mm or more or 300 mm or more, it is not necessary to be the root. The glass plate base material is set to be larger than the previous width. Therefore, even if the width of the desired glass sheet molded article is 200 mm or more, the manufacturing apparatus of the glass sheet molded article is not enlarged, and the flatness can be produced while suppressing the increase in the cost. The glass sheet molded article which is excellent in the surface roughness and the surface roughness of the glass sheet is obtained as a glass sheet molded article obtained by a manufacturing apparatus of a glass sheet molded article, and thus a wide range of flatness and surface roughness can be obtained. A glass plate molded article excellent in the use of a display device excellent in flatness and surface roughness is required. When the thickness of the glass plate base material is 〇·3 mm or less, the thickness of the 〇1 mm 160860.doc '9- 201228951 乂 can be easily obtained within the range of the above 1.5 or more and less than the elongation. The glass plate molded article can provide a glass sheet molded article which is extremely thin and can be wound with excellent flexibility. When the thickness of the glass plate base material is 0.3 mm or less, the glass plate has sufficient flexibility, and therefore, a long glass plate base material rolled into a roll shape can be prepared and a roll-shaped glass plate base material can be used. One side is supplied to the heating device from the light side, so it can be used to re-stretch the long glass plate base material, and the glass material can be reduced even if the glass plate base material wasted at the beginning of production and at the end of production. Waste. A wound glass plate molded article can be obtained by providing a winding device for winding a glass ribbon into a wound shape. Thereby, a long glass product can be obtained, and the conveyance or storage of the wound glass sheet molded article becomes easy. Further, in order to wind the glass plate molded article, it is easy to use other steps for other processing. [Embodiment] Hereinafter, a first embodiment of a manufacturing apparatus for a glass sheet molded article of the present invention will be described based on the drawings, but the present invention is not limited to the following embodiments. Further, in each of the drawings shown below, the scale of each component is simplified and is shown in a simplified manner. Fig. 1 is a view showing an overall configuration of a manufacturing apparatus for a glass sheet molded article of the present invention, and a manufacturing apparatus 20 for a glass sheet molded article according to the present embodiment includes a glass in which a plate-like glass is wound around a horizontally supported reel 3 The base material supply device 5 of the base material 1 and the heating device 6, the slow cooling device 7, the stretching device 8, and the cutting device 9 (first cutting device) provided in the lower side of the base material supply device 5 in this order And the winding device (winding roller) 1〇. 160860.doc -10- 201228951 Here, the glass plate base material refers to a raw material (base material) before molding, and refers to a glass plate in the form of a flat plate or a glass plate which is wound into a roll shape. Further, when the glass plate base material is molded, it is in the form of a continuous glass ribbon of the following. Further, the glass plate base material refers to a state in which the glass base material before molding as a raw material is not stretched, and the plate thickness refers to the thickness of the first glass plate base material. As a result, it is heated to the heating device during the stable molding process, and is always a glass plate base material until it is sufficiently warm. The glass plate base material 1 is preferably, for example, a strip-shaped glass sheet having a thickness of 〇3 mm or less. The glass plate base material 丨 comprises a glass sheet having a thickness of 〇3 mm or less, such as 0·25 mm, 0.15 mm, 0.1 mm, and having a flexible strip shape, and a cylindrical roll 3 The outer circumference is wound with the required length. The reel 3 can be mounted in a supply device 5 which can feed the glass plate base material out of the glass plate to the heating device 6 at an appropriate speed. The length of the glass plate base material 1 can be arbitrarily selected as the diameter of the reel 3 or the length that can be wound along the reel 3, and as an example, a glass plate of 5 m or more or 1 () minus the length can be used. Base metal 1. The method for producing the glass plate base material is not particularly limited, and for example, a general production method of a formable glass sheet such as a float method, a smelting method, a slit download molding, a lift molding, or a level forming can be used. The glass plate base material of the glass sheet of the above-mentioned thickness formed by the above-mentioned ordinary manufacturing method can be easily wound along the reel 3, and therefore, the device can be used according to the outer diameter of the reel 3 The glass plate base material used for the glass plate base material is much longer. Further, in the case of the glass plate mother 160860.doc 201228951 material 1 including the glass sheet obtained by the floating method, it is economical to obtain a wide width, and the application is relatively easy. Further, the manufacturing apparatus of the present invention can be provided in a continuous manner in the manufacturing apparatus of the glass plate base material by the floating method, and the glass plate molded article can be continuously produced in the manufacturing process of the glass plate base material. When the glass plate base material 1 is produced by the floating method, if the thickness is too small, the glass rigidity is lost and it is difficult to secure the wide strength. Therefore, it is preferably 0.3 mm or less, and preferably 0.05 mm or more and 0.3 or less. Below mm. Further, the thickness of the glass substrate base material 1 is more preferably O.i mm or more and 〇 25 mm or less, further preferably 0.1 mm or more and 〇·2 mm or less. If the thickness exceeds 〇3 mm', it is difficult to bend, and the production equipment becomes large. In order to respond to the request for widening of the glass product, the width of the glass substrate base material 1 is preferably 300 mm or more, for example, preferably 300 mm or more and 4,000 mm or less. Also 'glass plate base material! The width is more preferably 45 〇 mm or more and 3,000 mm or less, and further preferably 6 〇〇 mm or more and 2 〇〇〇 or less. If the width exceeds 4000 mm, the apparatus becomes large, and the temperature distribution management of the important glass in the re-drawing formation, especially in the width direction, becomes difficult, and it is difficult to realize the production of the product glass having a uniform thickness. When the glass plate base material 1 is a roll, the length is as short as described below, and the production efficiency is lowered. Therefore, it is preferably 2 m or more and 8000 m or less, more preferably 10 m or more and 3,000 m or less. It is preferably 30 m or more and 500 m or less. If the length of the roll is too long, it is likely to be broken by the weight of the roll when it is wound into a roll, and the operation becomes difficult. The thickness of the glass plate molded article produced from the above-mentioned glass plate base material 1 is 160860.doc 12 201228951 is the same as the glass plate base material. If the thickness is too thin, the glass rigidity disappears, so that it is difficult to ensure the wide-width strength, so it is preferably 0.1 _ Hereinafter, for example, 〇〇1 _ or more and 0.1 mm or less are preferable. Further, the thickness of the glass plate molded article is preferably 0.02 mm or more and 0. 08 mm or less, and more preferably 〇.〇2 claw or more and 0. 07 mm or less. If the thickness exceeds 〇1 mm, there is a possibility that the production efficiency in the re-drawing method is lowered and the effect of the present invention cannot be sufficiently obtained. The width of the glass sheet molded article is preferably 2〇〇111111 or more in response to the requirements for the miniaturization of the thin glass by the display, the illumination, the solar cell, the building, etc., for example, preferably 200 mm or more and 2 or less. Further, the width of the glass plate molded article is more preferably 200 Å or more and 15 Å or less, more preferably 300 mm or more and 1200 mm or less. If the width exceeds 2 〇〇〇 claws, the operation becomes difficult due to the thinness. When the glass sheet molded product is a roll, the length is not (4) (4). It can be cut into a random length by a cutter, and can be directly taken out in a roll shape or cut into a plate shape in a rectangular plate shape, that is, a so-called one-piece type. Further, the glass constituting the base material of the glass sheet of the present embodiment is not particularly limited in composition. For &, it may be any of _glass, thermophilic glass, boron glass, and 4 alkali-free glass. Further, the use of the manufactured glass product is not limited to construction or use, and various other uses of the flat panel display can be cited. The representative composition of the glass constituting the glass plate base material 1 is listed below. In the case of soda-lime glass used for sheet glass for construction or vehicles, it is preferably expressed as a mass percentage based on oxides and is SiO 2 : s 160860.doc -13· 201228951 65 to 75%, Al2 〇3: 〇~3%, CaO: 5~15%, MgO: 0~15%, Na2〇: 10~20%, Κ_2〇: 0~3%, Li2〇: 0~5%, Fe2〇3: 0~3% 'Ti02: 〇~5%, Ce02: 0~3%, BaO: 0~5%, SrO: 〇~5〇/0, B203: 〇~5%, ZnO: 0~5%, Zr02 : 0~5%, Sn02: 〇~3%, S03: 0~〇·5%. In the case of an alkali-free glass used for a substrate for a liquid crystal display or an organic EL (electroluminescence) display, it is preferably represented by a mass percentage based on an oxide and is Si〇2: 39 75 /ό, AI2O3. 3~27%, B2O3: 0~20%, MgO: 〇~133⁄4,

CaO: 〇~17%, SrO: 0~20%, BaO: 〇~30%. In the case of the mixed alkali glass used for the substrate for a plasma display, it is preferably expressed by mass percentage based on oxide and is Si〇2: 50 to 75%, A1203: 〇 15%, MgO +CaO+SrO+BaO+ZnO: 6~24〇/〇,

Na2〇+K2〇: 6~24% composition. In other cases, in the case of a borosilicate glass used for a heat-resistant container or a physicochemical device, it is preferably represented by a mass percentage based on an oxide and is Si 〇 2: 60 to 85%, A1203: 〇 ~5%, b2〇3. 5~20%, Na20+K2〇: 2~10% composition. The heating device 6 includes a vertical type of core tube 6A having a rectangular cross section and a plurality of resistive heaters (not shown) which are disposed around the core tube 6A. In the heating device 6, one opening of the core tube 6A is two-ported 4 6B, and is disposed substantially vertically below the base material supply device $, and the other opening portion is an outlet portion... The lower side of the base material supply device 5 is disposed substantially vertically downward. The core tube 1 is inserted into the inner side of the core tube from the inlet portion 6B which is formed by the self-reel 3 toward the lower roll 160860.doc -14 - 201228951, and can be discharged from the outlet portion 6C. size. The heating device ό is configured to heat the glass ribbon 2 通过 passing through the inside of the furnace by energizing the heaters. Preferably, a plurality of heaters used in the present embodiment are disposed around the core tube 6A, and by individually controlling the amount of energization of the plurality of heaters, the necessary portions of the glass ribbon 2A passing through the core tube 6A can be used. The heating is controlled so as to be an appropriate temperature above the softening point. Here, the glass plate which is a band-shaped glass plate which is softened from the glass plate base material 1 and softened and the thickness of the glass plate starts to be thinned and is cut into a glass plate molded article is referred to as a glass ribbon. In this case, the glass plate molded article refers to a glass plate which is an intermediate product or a finished product in a state after the glass ribbon is cut, and may be a flat glass plate, and may be wound into a roll shape. The intimate glass plate may be formed by laminating a coating or a film on the surface of the glass plate in the form of a subsequent step or a customer step. However, the calculation of the elongation in this case is calculated only based on the thickness of the glass portion of the glass sheet. If the principle of re-drawing is described in time series, if the glass substrate to which the tension is applied is heated and softened, the thickness of the sheet becomes gradually thinner, and the thickness of the sheet is stopped during cooling to become a certain thickness. By cutting out the hustle and bustle. It can be made into a glass plate molded product. In this case, since the tension is always applied to the glass base material, the thickness becomes thin at the instant of softening. According to the above definition, the glass of this portion is formed as a glass ribbon. Therefore, in the time series, the glass plate base material is heated and softened to be formed, but in the case of the device configuration for stabilizing the space in the forming, the glass ribbon is actually heated. The heating action 6 applies a drawing speed (hereinafter referred to as "forming speed") of the stretching device 8 for stretching the glass ribbon 2 to the glass plate base material 1 and a speed at which the glass plate base material 1 is supplied to the heating device ( In the state of the tension generated by the difference in the "supply speed", the glass sheet base material is softened and elongated into a substantially mesa shape (a shape in which the lower side is shorter than the upper side) to form a glass ribbon (the following table shape is used) The drawn portion is referred to as a glass ribbon extending region 2A), and it is ensured that the temperature environment in which the glass ribbon extending region 2A is softened is maintained. In addition, it is also possible to supply a clean air-rolling, an A gas, an Ar gas, a gas, or a mixed gas to the inside of the furnace core tube, and to perform the glass in an environment in which impurities or the like are not mixed in a heating environment. The belt is stretched. The slow cooling device 7 is configured such that a vertical type of rectangular tube wall having a rectangular cross section is provided with a resistor type heater, an air cooling tube, a water cooling tube or the like, and the like. In the slow cooling device 7, the opening portion of the corner tube wall 7a is the inlet portion 7B, and the upper portion of the heating device 6 is disposed substantially vertically upward, and the other opening portion is the outlet portion 7C. The lower portion is disposed substantially below the heating device 6. The purpose of arranging the slow cooling device 7 is to reduce the thickness of the glass ribbon 2 by a temperature without breaking. 3 Further, this embodiment can perform the energy test. The person if* « ' passes through the heating device 6 and has a width and

6 - Structure of the body. ', ~ sucking clothes 罝 / is relatively difficult to F relative to the heating device 6, so it is better to set up with the heating device because the heating zone and the slow cooling zone is substantially 160860.doc •16·s 201228951, The knife is separated and the two are integrated to form a glass temperature gradient. . The stretching device 8 is configured to be adjacent to the structure 12 in which two rollers 12 horizontally supported by the support shaft u are disposed, and is configured to be sandwiched by the roller 12 and the outlet portion 7 of the slow cooling device 7; The two sides of the broken ribbon can rotate each parent 12 . The glass plate base material can be drawn from the base material supply device 5 by holding the glass ribbon 2 with the rolls 12 and 12 on the surface at a suitable speed. The stretching device 8 may also be disposed in the heating device 6 or in the slow cooling device 7, or may be provided in plurality. Further, the rolls 12, 12 may be in contact with the entire width direction of the glass ribbon, or may be in contact with only one of the width directions. The cutting device 9 incorporates a cutting device capable of forming a cutting path in the width direction of the glass ribbon 2 θ passing through the inside thereof, and a folding device for cutting the glass ribbon 2 by cutting the cutting force along the cutting path. Since the cutting device and the folding device incorporated in the cutting device 9 are equivalent to the well-known glass cutting device provided in the ordinary sheet glass production line, detailed description thereof will be omitted. Furthermore, the cutting device 9 is not limited to the combined structure of the cutting device and the folding device, and may be a cutting device in which the laser beam is cut without a cutting path or a device in which the laser beam is directly blown. Any of the structures. The winding roller (winding device) 1 can wind the glass ribbon 2 passing through the stretching device 8 and the cutting device 9 into a desired length. Next, a method of manufacturing the glass sheet molded article 15 from the glass sheet base material 1 via the glass ribbon 2 will be described with reference to the manufacturing apparatus 2 for the glass sheet molded article having the above configuration. First, by energizing the heater of the heating device 6, it is adjusted to heat the softened environment of the glass plate base material (forming start time point) or the glass ribbon s 160860.doc _ 17 201228951 supplied to the inside of the core tube 6Α. ...the heating 'cooling condition' of the heater and the cooling device of the slow cooling device 7 is set to adjust to an environment in which the glass ribbon (which is sometimes a glass plate base material at the start of molding) is slowly cooled. The reel 3 along the base material supply device 5 is a glass plate base material comprising a glass plate having a thickness of 〇.3 mm or less, and the glass plate base material is supplied from the reel 3 at an appropriate speed to The heating device 6 and the slow cooling device 7 are lost between the rolls 12 and 12 and are stretched at an appropriate speed or tension. The glass plate base material in the heating device 6 at the start of forming is softened by heating, and at the same time, the glass plate base material is formed into the glass ribbon extending region 2A, and the thickness becomes thin. Thereafter, the supply speed and the forming speed are set to a desired value, and the setting conditions of the heating device 6 or the slow cooling device 7 are also set as the stabilization conditions. In the process, the shape or temperature distribution of the extended region of the glass ribbon is stabilized, so that a predetermined width and a predetermined thickness of glass can be extracted. Further, the glass ribbon stretched by the stretching device 8 at the time of the start of forming is used. The front end side is not extended, so the width and thickness are not reduced. Therefore, the glass ribbon extending region 2 is stably formed and the stretching step is stabilized. m is not wound around the glass ribbon along the winding device, and is taken out from the stretching device 8 sideways as a useless portion at the time of starting the production. This is sent to a pulverizing apparatus or the like which is omitted from the drawing, and processed into a glass genus for reuse. The glass ribbon 2 is fed to the cutting device 9 after the temperature of the glass ribbon is extended and the glass ribbon 2160860.doc 201228951 is drawn from the glass ribbon extending region 2A. The side is passed through the cutting device 9 and wound along the winding roller 10. The above processing is continued, and the cutting device 9 is actuated to cut the glass ribbon 2 at a time when a sufficient amount of the glass ribbon 2 is wound around the winding roller 10. Thereby, the glass roll 15 which is a glass plate molded product in which the glass ribbon 2 is wound into a roll shape along the winding roll 1 可获得 can be obtained. Thereafter, the winding roller 1 that is attached with the glass ribbon 2 is exchanged for the other idle winding roller 10' to be wound along the idle winding roller 1 and accommodate the newly produced glass ribbon 2, thereby obtaining Since the glass roll 15 of the glass ribbon (9) in the state of a roll is wound up, the glass roll 15 can be produced repeatedly until the supply of the glass plate base material to the heating device 6 is completed. The glass plate of the structure shown in Fig. 1 is further formed. The manufacturing apparatus 20 of the present embodiment is used to manufacture the glass roll 15 by winding the glass ribbon 2 along the winding roll 1 to form a glass roll 15, but it is not limited to only The form of the glass roll 15 is produced. For example, the manufacturing apparatus 20 using the glass sheet molded article does not wind the glass ribbon 2 along the winding roller 1G as shown by the two-dot chain line of Fig. 1 (A), but is cut by the cutting device 9 by the glass ribbon (4). The desired length can also be used for the production of a rectangular flat sheet, a so-called one-piece glass sheet 16. ΔIn view of the fact that the elongation α is a parameter and the material of the glass sheet molded article in the present embodiment is produced in comparison with the prior art (hereinafter referred to as "productivity in terms of material"). First, the productivity of the material in the previous example shown in Fig. 5 was examined. Two glass plate base materials can be produced as a number of glass plate molded products as indicators. The productivity of the material is set to β, and β is defined as the area Α before the forming of the glass plate base material. The ratio of the total area α of all glass molded articles can be expressed as 160860.doc 201228951. β = Α / Α〇 ... (1) Here, AG is the area before the formation of the glass base material, and Α is the total area of all the broken glass products. The greater the value of B, the higher the productivity of the material. When the thickness of the glass plate base material is tQ, the thickness of the glass molded article is t, the width of the glass plate base material is Wq, and the width of the glass molded article is w, and the length of the glass plate base material is When it is set to " and the total length of all glass molded articles is set to L, then ~ and eight can be expressed by the following formula. A〇=L〇xw〇...(2) A=Lxw (3) The supply rate of the glass plate base material at the time of stable molding is Vg, and the forming speed of the glass ribbon is V. Since the elongation ratio is a ratio of the thickness of the glass plate base material to the glass molded article, it can be expressed by the following formula. a=t〇/t (4) Further, according to the principle of re-drawing, the following formula holds. a = w〇/w (5) Further, the glass supplied per unit time during the stable forming process The volume of the base material of the plate is equal to the total volume of the molded glass sheet produced per unit time. Thus, the condition of the following formula is established. t〇xw〇x V0=txwx V (6) as described above, in forming At the beginning and at the end of the forming, the L1 part of Fig. 5 cannot be made into a glass molded product as a product. The part of the front side of the glass plate base material was wasted at the initial stage of production and the glass was After the waste plate matrix gripping means gripping the end side portion of relatively. Thus, at the beginning of the forming avoid no

160860.doc •20- S 201228951 The maximum value of the glass plate base material that can be effectively used and can be effectively used, L〇i, can be expressed by the following formula. L〇 1 ''Lq-L j (7) Thus, the maximum area of the glass ribbon can be formed eight! It can be expressed by the following formula. A ] —α XL〇j (8) Further, the length of the portion where the glass sheet molded article can be formed at the end of the forming in the portion where the glass ribbon is formed is equal to the total value of the total length of all the glass sheet molded articles. , the assumption can be made by the following formula. L = Aj / w - Li (9) According to this formula, the total area A of all the glass molded articles can be expressed by the following formula. A=A, -L!xw (1〇) According to the above relationship, β can be expressed by the following formula. P=a(lL, /L〇)-L1/(axL〇) (11) Thus, the method of improving the productivity β of the material has the effect of increasing the elongation a and making it impossible to form efficiently. There are three methods in which the length L1 is decreased and the length L〇 of the glass plate base material is increased. However, in the embodiment of FIG. 5, the method of reducing the minimum length L! that cannot be effectively formed is such that the heating device or the slow cooling device 105 is reduced as much as possible in the longitudinal direction, and the device requiring rapid heating and rapid cooling is required. The quality is also reduced due to the forming of the re-drawing. Therefore, this implementation has limits. Further, in addition, the method of increasing the length of the glass plate base material is to increase the size of the glass plate base material supply portion as much as possible, thereby making the height of the manufacturing apparatus extremely high and ineffective, and the glass plate base material is conveyed, Handling and handling are also difficult. In fact, sometimes the length LG of the glass base material is 3 m, and the minimum length that cannot be effectively formed is ι claw. 160860.doc 201228951 proposes the size of the glass plate base material supply part The method of increasing the replacement mechanism is the method of Patent Document 2, but there is a problem in the quality of the glass sheet molded article as described above. Therefore, in the prior art, in order to improve the productivity of the material, β has been used as much as possible. The elongation rate α is developed for the purpose. On the other hand, in the present invention, with the demand for a wide glass electrode sheet molded article, it is possible to achieve high quality by providing a manufacturing method having a small elongation 〇1. Production of a wide-format glass electrode sheet molded article. If the width of the desired glass sheet molded article is set to w, the width W of the glass sheet base material t can be expressed by the following formula: w〇=axw ...( 12) That is, since the width of the glass sheet base material 1 determines the width direction of the manufacturing apparatus, the smaller the elongation ratio with respect to the required width w of the glass sheet molded article means that it can be used in a manufacturing apparatus having a small width. Production is carried out. In order to obtain two-quality glass molded articles in re-drawing, the control of the temperature distribution in the width direction or the control of the dynamic or tensile force of the glass ribbon is important. Therefore, the width of the device is not too wide and the quality of the glass is high. In addition, the production apparatus having a small width can also be reduced in cost. The glass ribbon 2 is molded by the manufacturing apparatus 2 of the glass sheet molded article having the structure shown in Fig. 1 to produce a glass sheet molded article. In the method described above, when the above-mentioned investigation is carried out, it is equivalent to the case where one glass plate base material is supplied in a sheet-shaped base material, and a flat glass-shaped molded article is obtained. In other words, the case of the glass sheet molded article is equivalent. In other words, setting the elongation a small means the productivity of the material I60860.doc -22·

201228951 is smaller. In the present invention, in order to obtain the maximum productivity in terms of materials, it is also possible to provide a method for increasing the length of the glass substrate base material. In the present invention, since the elongation α is small, the thickness of the glass base material can be set to 〇3 in the case of producing a glass electrode sheet having a thickness of 〇1 mm or less. A glass plate of 0.3 mm or less has flexibility and is easily rolled into a roll shape. Therefore, it is possible to carry out a re-drawing method using a roll-shaped glass plate base material which cannot be carried out in the prior art. Moreover, the length of the base material of the glass sheet can be made to be protractively longer than before. The point of view of productivity is not just a material point of view. The time productivity of the production of a plurality of glass sheet molded articles per unit time (hereinafter referred to as "productivity in terms of time") is also a major problem. In the case of re-drawing by the prior method, since the continuous supply of the glass plate base material is substantially impossible, the glass plate base material is produced in addition to the pure production time, and the glass plate molded article is formed into The time required for the stabilization of the stable molding conditions of the good product is lowered from the (four) aspect. In the previous embodiment shown in Fig. 5, the exchange time and the stabilization time '(9) are frequently generated and the productivity improvement in terms of time is difficult. On the other hand, in the production method of the elongation rate ai as in the case of the present invention, since the glass plate base material in a pure form can be made, the productivity in terms of time is also drastically improved. The use of a roll-shaped glass plate base material is possible under the manufacturing conditions of L〇, which is a manufacturing device that is as short as possible as previously expected, and can be produced by slightly making L longer. Realization of 160860.doc 23· 201228951 The high quality of glass molded products, such as the actual cold start, m only 贳 贳 贳 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟 虚拟Manufacturing of products. When the molding is carried out using the manufacturing apparatus 20 of the glass sheet molded article of the present embodiment, the molding is performed at a lower elongation than the elongation set in the conventional re-drawing device. Specifically, it is set to be .5 or more and less than 10, preferably i 5 or more and below, more preferably 1.5 or more and 5 or less, further preferably 41 5 or more and an elongation of #以下 or less Forming as an elongation, & it is necessary to make the device larger than necessary to produce. Further, if the elongation is less than K5, the ratio of elongation is too low, so that the meaning is practically lost. In addition, if the elongation exceeds 5, the effect of producing the glass sheet having the required width and width can be obtained. However, when the elongation is 5 or less, the glass substrate is present. The case where the width becomes large, the operability is deteriorated, and the manufacturing equipment becomes large. Therefore, an elongation of 5 or less is a more preferable range. Table 1 below shows the sheet thickness (mm) and width (m) of the glass sheet base material 1 when the elongation α is 5 or less, and the sheet thickness (mm) and width (m) of the glass sheet molded article. Relationship. [Table 1] Glass plate molded product specifications *" Elongation glass plate mother; Η·Specification plate thickness (mm) Width (m) Plate thickness (mm) Width (m) 0· 1U f\ f\C 0.30 3 0.30 0 9 U.UD 0.05 0.20 __ 0.25 1.0 U.60 0.15 1.8 0.03 0.35 " 0.15 1.7 As shown in Table 1, if the elongation α is set to 5 or less, even the glass plate mother 160860.doc

-24- S 201228951 The plate width of material 1 is set to be less than 2 m, and the width of the obtained glass plate molded article can be made larger in the range of 0.2 to 0.6 m (200 mm to 600 mm). Further, by using the glass plate base material 1 containing a glass thin plate, a glass plate molded article having a thickness of 0.03 mm to 0.1 mm can be produced. Further, in the case of the glass sheet molded article obtained by the molding method of the present invention, since the effect of obtaining the glass ribbon having the excellent flatness as shown by the so-called re-drawing method can be invariably inherited, it is obtained. A high-quality glass sheet molded article having a wide width and high flatness. Therefore, the above-described molding method of the manufacturing apparatus 20 for a glass sheet molded article of the present embodiment can produce a flat surface having a high flatness and a width without increasing the size of the manufacturing apparatus 2 of the glass sheet molded article. Larger glass ribbon and glass sheet molded products. In addition, the manufacturing apparatus 20 of the glass plate molded article of the embodiment shown in FIG. 1 is configured such that the winding roller 10 is provided after the cutting device 9, and the glass ribbon 2 is wound into a roll of a long strip. It is also possible to cut the glass ribbon 2 into a desired length, and not to wind the winding roller 1 to obtain a flat plate-shaped so-called single-piece glass plate. The glass plate molded article manufacturing apparatus 20 is not limited to the vertical structure shown in FIG. 1, and the base material supply device 5 and the heating device may be disposed in an inclined arrangement or a horizontal arrangement as long as the glass ribbon extending region 2A can be maintained. 6. Structure of the slow cooling device 7 and the stretching device 8. Fig. 2 is a view showing a second embodiment of the apparatus for manufacturing a glass sheet molded article of the present invention, in the glass sheet molded product manufacturing apparatus 3 according to the second embodiment, the glass of the first embodiment described above Manufacture of sheet-formed articles s 160860.doc -25- 201228951 The same elements as those of the elements device 20 are denoted by the same reference numerals. In the manufacturing apparatus of the glass-slurry molded article of the present embodiment, the glass ribbon end portion is provided between the stretching device 8 and the cutting device 9 in a different aspect from the manufacturing device 2 of the prior glass plate molded article. The cutting devices (second cutting devices) 22, 22 are cut. A glass ribbon end cutting device 22 includes a cutting device for forming a cutting device such as a cutting device and a folding device, and has a built-in glass ribbon 2 that passes through the inside thereof and is separated from the edge of the glass ribbon 2 along its length. The cutting of the cutting path is continuously formed at a position at a certain distance | S, and the folding device such as the roller device that cuts off the edge side of the glass ribbon 2 by the shearing force of the knife cutting path. Since the cutting device and the folding device in the cutting device 9 are the same as those of the conventional glass tape end cutting device provided in the ordinary glass plate production line, the detailed description will be omitted. As an example of the folding device, a plurality of roller devices are provided on the side of the cutting path H so as to sandwich the inner surface of the glass ribbon 2, and a shearing force is applied to the glass ribbon 2 in the roller devices. A device for folding both ends of the glass ribbon 2 along the cutting path. Furthermore, the end of the glass ribbon is not limited to the combination of the cutting device and the folding device, and the cutting device can be cut by the laser beam to form the cutting channel, or the laser beam can be directly A cut-and-break device of any of the blown devices and the like. In the same manner as the manufacturing apparatus 20 of the glass sheet molded article of the first embodiment, the glass sheet base material 1 is fed from the base material supply device 5 to the heating device 6, as in the manufacturing apparatus 20 for the glass sheet molded article of the first embodiment. The wall is privately formed and pulled 160860.doc -26- 201228951 to form the glass ribbon extending region 2A' to manufacture the glass ribbon 2' in the aspect of winding the glass ribbon 2 along the winding roller 10 side. structure. In the manufacturing apparatus 30 of the glass plate molded article, after the glass plate base material 1 is formed into the glass ribbon 2 and passes through the stretching device 8, the glass ribbon end cutting device 22 is used to cut the glass ribbon over a specific width. On both end sides, the outer side of the cut portion is defined as the end portion 2D and separated from the center glass ribbon 2e on the center side. Only the center side glass ribbon 2E is wound around the winding roller 1 and wound into a roll shape to be accommodated in the winding roller 10. The cutting end portion 9 is cut along the width direction of the center side glass ribbon 2E at a time point when the center side glass ribbon 2E wound along the winding roller 1 turns into a desired amount, whereby the removal end portion 2 can be obtained. The crucible is wound into a roll-shaped central side glass ribbon 2E. Since the center side glass ribbon 2E is formed by separating and removing the end portion 2D which is more likely to have irregularities or thickness variations, the both end portions in the width direction are smooth and have no unevenness, and can be obtained by the re-drawing method. A high-quality center side glass ribbon with flatness and surface roughness. Further, a glass roll 18 which is a glass sheet molded product obtained by winding a center-side glass ribbon in a roll shape along the winding roller 10 can be obtained. In the present embodiment, since the end portion 2D to be removed is present, it is preferable to use a method in which the rolls 12 and 12 of the stretching device 8 are only in contact with the end portion 2D in order to stretch the glass ribbon 2. The purpose is to avoid a reduction in the quality of the glass ribbon caused by the contact of the rolls 12, 12. Further, in the case where the end portion of the glass ribbon of high strength is required regardless of the quality of the end portion of the glass ribbon, a method of manufacturing the shape of the end portion of the glass ribbon is preferably not performed. The reason is that when the end portion is not cut, the end portion is a flame-polished surface after heat forming. Fig. 3 is a view showing a third embodiment of the apparatus for manufacturing a glass sheet molded article of the present invention, the glass of the glass sheet molded article according to the third embodiment, and the glass of the second embodiment described above. The same elements as those of the manufacturing apparatus 30 of the sheet-formed product are denoted by the same reference numerals, and the detailed description of the elements will be omitted. The manufacturing apparatus 5 of the glass sheet molded article of the present embodiment differs from the conventional glass sheet molded product manufacturing apparatus 30 in that the supply device 5 is supplied between the base material supply device 5 and the heating device 6 The device for extracting the glass plate base material from the roll-shaped glass plate base material 1 of the roll, and comprising the tension between the supply device 5 and the heating device 6 separately from the tension generated by the stretching device 8 on the glass ribbon A mechanism 21 for adjusting the tension of the glass plate base material 1; and a winding device for winding the glass ribbon between the cutting device 9 and the winding roller 1 into a roll-shaped glass plate molded product (winding roll i 〇 And on the side of the first cutting device 9 of the winding device, the mechanism 23 for individually adjusting the tension of the glass ribbon 2E separately from the tension generated by the stretching device 8 for the glass ribbon is included. Here, the former mechanism 21 is referred to as a first tension shutoff mechanism 21, and the latter mechanism 23 is referred to as a second tension shutoff mechanism 23. The first tension shutoff mechanism 21 includes a pair of first tensioning members 25 and 25 disposed adjacent to each other, and a pair of second tension rollers %, 26 and the first tension rollers 25 and 25 respectively disposed adjacent to each other. Supported by the support shaft 27 horizontally, and disposed between the base material supply device 5 and the heating device ,, and the second tension rollers 26, 26 are horizontally supported by the support shaft 28, and disposed at the 13th: tight roller 25, 25 and 160860.doc

-28· S 201228951 Between heating devices 6. With these configurations, the glass sheet base material 1 taken out from the base material supply device $ is first sandwiched between the first tension rollers 25 and 25, and the second tension roller 26, 26 is next. The gripping side passes between the two, and thereafter, it is supplied to the heating device 6. The second tension shutoff mechanism 23 includes a pair of third tension rollers 40 and 40 disposed adjacent to each other, and a pair of fourth tension rollers 3ι disposed adjacent to each other. The third tension rollers 30, 30 are horizontally supported by the support shaft 32, respectively, and disposed between the cutting device 9 and the winding roller 10, and the fourth tension rollers 31, 31 are horizontally supported by the support shaft 33, and It is disposed between the third tension rollers 4〇, 4〇 and the winding roller. With such a configuration, the glass tape of the cutting device 9 is initially held by the third tension rollers 40, 40 while passing between the two, and the second surface is sandwiched by the fourth tension rollers 31, 31. After passing between these, it is comprised so that it may reach the winding roller 10. In the manufacturing apparatus 50 of the glass sheet molded article of the present embodiment, even when the glass sheet base material 1 moves between the first tension rolls 25 and 25 and the second tension rolls 26 and 26, even the glass plate base material i The tension is slightly different from the normal value, and normal tension can be applied to the glass plate base material 1 passing through the second tension rolls 26, 26 to the portion of the heat cracking 6. For example, when the glass plate base material ι is fed out from the base material supply device 5 toward the heating device side at a speed higher than necessary, if the tension of the inner glass ribbon of the heating device 6 is relaxed, the inside of the heating device 6 is inside. The side affects the forming state of the glass ribbon extending region 2A, so that it cannot be formed at a desired elongation. On the other hand, if a tension cut-off mechanism is provided in the front stage of the heating device 6, the shell material is supplied from the base material to the glass plate base material of the farm material 5! The supply amount of 160860.doc •29·201228951 is increased because the glass plate base material 1 exists between the first tension roller 25 and the second tension roller 26 in a relaxed state, so that it can be supplied to the heating device 6 The supply state of the glass plate base material 1 is stabilized, so that the heating state and the extended state of the glass ribbon can be stabilized. In the manufacturing apparatus 5 of the glass sheet molded article of the present embodiment, the tension of the glass ribbon 2E is maintained even during the movement of the glass ribbon 2E between the third tension rollers 40 and 40 and the fourth tension rollers 31 and 31. The normal value is slightly different, and normal tension can be applied to the glass ribbon 2E passing through the portions from the fourth tension roller 31, 31 to the winding roller 10. In the manufacturing apparatus 50 for a glass sheet molded article, by providing the tension cutting mechanism 23 in the preceding stage of the winding roller 1 ,, the self-heating device 6 side can be made to face the winding roller! The state of the side-stretched glass ribbon 2E is stabilized, so that the stretched state of the glass ribbon 2 and the stabilization of the winding of the winding roller 10 can be achieved. Further, since the glass ribbon 2E can be wound around the winding roller 10 at the correct tension, it can be wound accurately along the winding roller 丨0 without dislocating the glass ribbon 2E. As described above, while the glass ribbon 2 is wound by the winding roller 1 after passing through the stretching device 8, even if the moving speed of the glass ribbon 2 passing through the stretching device 8 is generated and the winding roller 10 is wound around the glass In the case of the difference between the speeds of the belts 2E, since the tension intercepting mechanism 23 absorbs the difference, the state of the glass ribbon extending region 2A generated inside the heating device 6 can be stabilized, thereby suppressing the elongation. change. In the manufacturing apparatus 50 for a glass sheet molded article of the present embodiment, the glass roll 51 formed by winding the roll-shaped center side glass ribbon 2E along the winding roller 10 can be obtained. Further, in addition to the above embodiment, the following form may be used:

160860.doc •30- S 201228951 Various tension cutting mechanisms used in the web (WEB) operation technology including the winding and unwinding transfer technology of plastic film, paper, cloth, etc., and the glass in the heating device 6 can be separately controlled. The tension with the tension of 2A, the tension of the glass sheet base material 1 in the form of a roll, and the tension of winding the glass ribbon into a roll shape. Fig. 4 is a view showing a fourth embodiment of the apparatus for producing a glass sheet molded article of the present invention, and the glass of the first embodiment of the glass sheet molded article manufacturing apparatus according to the fourth embodiment; The same elements as those of the manufacturing apparatus 20 of the sheet-formed product are denoted by the same reference numerals, and the detailed description of the elements will be omitted. In the manufacturing apparatus 60 of the glass sheet molded article of the present embodiment, the manufacturing apparatus 20 of the glass sheet molded article differs from the prior art in that a transfer machine such as a coiling machine is incorporated between the base material supply device 5 and the heating device 6. The configuration of the roller 70; and the configuration of the inspection device 52 and the film feeder 53 between the slow cooling device 7 and the stretching device 8. Further, the configuration is different in that a plurality of stretching devices 8 are provided. In the same manner as the manufacturing apparatus 2 of the glass plate molded article of the first embodiment, the thin plate-shaped glass plate base material 1 is formed from the base material supply device 5 in the same manner as the manufacturing device 2 of the glass plate molded article of the first embodiment. It is sent to the heating device 6, and the glass ribbon is softened and stretched to form a glass ribbon extending region, and the glass ribbon 2 is formed. The glass ribbon 2 can be wound around the winding roller 1 side. structure. In the manufacturing apparatus 6 of the glass plate molded article of the present embodiment, the inspection device 52 is configured to examine the appearance defects, the thickness distribution, the plate width, and the like of the glass ribbon 2B passing through the slow cooling device 7 by the inspection device 52. The film feeder 53 formed by winding the resin film 56 from the turntable member 160860.doc -31 - 201228951 55 supplies a film to the surface of the glass ribbon 2. The position at which the film 56 is supplied from both the film feeder 53 to both sides of the glass ribbon 2 is set before the stretching device 8. When the film 56 is supplied to both sides of the glass ribbon 2, the film 56 is pressed by the rolls 12 and 12 of the stretching device 8, and the composite glass ribbon 57 to which the film 56 is adhered to both surfaces of the glass ribbon 2 can be obtained. In the manufacturing apparatus 6 of the glass sheet molded article of the present embodiment, the composite glass ribbon 57 can be wound into a roll and stored in the winding roller 1A, so that the composite glass ribbon 57 can be obtained in a state of being wound up. Further, it is possible to obtain a glass sheet μ which is a glass sheet molded article in which the composite glass ribbon 57 is wound up along the winding roll 1〇. The present invention has been described in detail with reference to the specific embodiments of the invention. The present application is based on Japanese Patent Application No. 2010-278577, filed on Dec. Industrial Applicability The technology of the present invention can be widely applied to the production of glass for construction, glass for vehicles, glass for optical use, glass for medical use, glass for display devices, and other common glass products. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view showing a manufacturing apparatus of a glass sheet molded article according to a first embodiment of the present invention. FIG. 1(A) is a schematic view showing an overall configuration, and FIG. One part of the manufacturing apparatus of the molded article is a side view of a cross section. Fig. 2 is a view showing the manufacture of a glass sheet molded article according to a second embodiment of the present invention;

160860.doc -32- S 201228951 Overview of the overall structure of the device. Fig. 3 is a side view showing a part of a manufacturing apparatus of a glass sheet molded article according to a third embodiment of the present invention. Fig. 4 is a schematic view showing the overall configuration of a manufacturing apparatus for a glass sheet molded article according to a fourth embodiment of the present invention. Fig. 5 is a schematic view showing the overall configuration of a conventional re-drawing forming apparatus. [Main component symbol description] 1 Glass plate base material 2A Glass ribbon extending region 2B Glass ribbon 2D Glass ribbon end portion 2E Center side glass ribbon 3 Reel 5 mother Material supply device 6 Heating device 7 Slow cooling device 8 Stretching device 9 Cutting device (first cut 11 support shaft 10 winding roller 12 roller 15 glass roller 16 glass sheet 18 glass roller 160860.doc • 33

S glass plate molded product manufacturing apparatus first tension cutting mechanism glass ribbon end cutting device (second cutting device) second tension cutting mechanism first tension roller second tension roller glass plate molded product manufacturing device 4 tension roller 3rd tension roller glass plate molding product manufacturing device glass pro inspection device film feeder resin film composite glass ribbon glass roller glass plate molding product manufacturing device conveying roller

S

Claims (1)

201228951 VII. Patent application scope: 1. A method for manufacturing a glass plate molded article, comprising: an extending step of softening a glass plate base material, and having a narrower plate width and a plate thickness than the glass plate base material; a glass ribbon base material is thinly stretched to form a glass ribbon; and a cutting step of cutting the glass ribbon in a width direction thereof to form a glass sheet molded article; and the thickness of the glass sheet base material and the glass The ratio of the sheet thickness of the sheet molded article indicates an elongation of 1 · 5 or more and less than 1 〇. 2. The manufacturing method according to claim 1, wherein the glass plate base material has a plate thickness of 0.3 mm or less. 3. The method of producing the item 1 or 2, wherein the glass sheet molded article has a sheet width of 200 mm or more. 4. The manufacturing method according to any one of claims 1 to 3, wherein the glass plate base material has a plate width of 300 mm or more. The above-mentioned glass sheet is formed into the above-mentioned glass ribbon. The manufacturing method of any one of claims 1 to 4 has a sheet thickness of 0.1 mm or less. The above-mentioned glass plate mother and the roll-shaped glass plate mother. The manufacturing method according to any one of claims 1 to 5 is a roll-shaped glass plate base material wound into a roll, and the material is rolled out of the sheet glass and Make it soft. The manufacturing method according to any one of claims 1 to 6, which is a roll-shaped glass sheet molded article wound into a roll. 8. The step of cutting the length direction of the glass ribbon glass ▼ between the manufacturing method according to any one of claims 1 to 7 and the cutting step. , in the width direction end of the above extending step The method of ι + Μ ± Η 'in 1铯 according to any one of claims 1 to 7, which does not include any of the above-mentioned extension steps and the above-described cutting step. The step of cutting the end portion in the width direction of the glass ribbon along the length direction of the glass ribbon. 10. A manufacturing apparatus for a glass sheet molded article, which is used for the manufacture of a glass sheet molded article according to any one of the items 1 to 9, comprising: / a sheet of a glass material a heating device that heats and softens a glass plate base material supplied from the above-mentioned device y_α device to form a glass ribbon; a stretching device that stretches the glass ribbon; and a first-cutting device The glass ribbon after the above stretching was cut to prepare a glass plate molded article. η. The material set of claim Η), wherein said supply means is a device for feeding said glass plate base material which is taken up from a roll-shaped glass plate base material of a roll. 12. The manufacturing apparatus according to claim 4, wherein between the supply means and the heating means, the tension of the rolled glass base material is separately adjusted separately from the tension generated by the stretching means for the glass ribbon. mechanism. The manufacturing apparatus according to any one of claims 1 to 12, further comprising a second cutting device disposed between the stretching device and the first cutting device, and removing Both ends of the glass ribbon in the width direction. The manufacturing apparatus according to any one of claims 10 to 13, comprising a winding device that winds the glass ribbon into a roll-shaped glass sheet molded article; and the first of the winding device The cutting device side is provided with a mechanism for individually adjusting the tension of the glass ribbon separately from the tension generated by the above-mentioned stretching device for the glass ribbon. 15. The claim of any one of claims 1 to 51: a T-spot having a slow cooling device, wherein the slow cooling device is disposed between the heating device and the stretching device, and The glass ribbon which is softened by heating is slowly cooled. 160860.doc