JP2016113343A - Molding apparatus of curved sheet glass and molding method of curved sheet glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molding apparatus of a curved sheet glass and a molding method thereof, capable of uniformly heating a plurality of sheet glasses and accurately bending the same.SOLUTION: In a molding apparatus of a curved sheet glass, a combination of a shaping mold 2, a sheet glass 1 mounted on the shaping mold 2 and an upper mold 3 are treated as one set 4, and the plurality of sets 4 are put in a heating furnace and are heated simultaneously. The plurality of sets 4 are placed on a setter 6, and together with the setter 6, are conveyed into the heating furnace 5 with a conveyor and the like. The sets 4 are arranged in a lattice shape on the setter 6, and dummy sets 7 are placed at positions where the sets 4 are not placed. Then, the whole circumference of the sets 4 and the dummy sets 7 arranged in the lattice shape is surrounded by enclosure brick 8 as a soaking member. The enclosure brick 8 is covered over the entire circumference at the upper part thereof with a lid member 10 from above.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a curved sheet glass forming apparatus and a forming method thereof.

  In recent years, mobile devices such as smartphones and tablet PCs are rapidly spreading. As the plate glass used for the touch panel of these devices, in addition to the flat plate glass that has been conventionally employed, for example, a curved plate glass having a curved surface formed with a certain radius of curvature may be employed. is there.

  As an apparatus and a method for forming such a curved plate glass, it has already been made to soften the plate glass using a heating means and then bend the plate glass.

  For example, Patent Document 1 discloses a method and an apparatus for forming a curved surface by pressing a heat-softened sheet glass against a forming surface of a forming die via a heat-resistant sheet and clinging the sheet glass to the forming surface.

JP 2012-116692 A

  By the way, when softening a plate glass using a heating means and curving the plate glass, it is preferable to heat a plurality of plate glasses simultaneously in view of the efficiency of the heating operation of the plate glass.

  However, when heating a plurality of plate glasses at the same time, the amount of heating of the plate glasses varies due to, for example, a difference in distance between each plate glass and the heating means. If the amount of heating varies, there is a difference in the degree of softening of the plate glass, the accuracy of the curvature of the plate glass is not stable, and the quality may vary.

  Under such circumstances, an object of the present invention is to provide a curved plate glass forming apparatus and a method for forming the same, which can uniformly heat a plurality of plate glasses and bend the plate glasses with high accuracy.

  In order to solve the above problems, the present invention provides a curved plate glass provided with a heating means for heating a plurality of plate glasses and a mold for forming the curved plate glass by curving the plate glass heat-softened by the heating means. In this molding apparatus, a heat equalizing member having a heat insulating property is disposed between the heating means and the plate glass.

  According to said structure, the heating of the plate glass by a heating means is indirectly performed via a soaking | uniform-heating member. Therefore, the temperature rise of the plate glass can be moderated and the heating amount of each plate glass can be made uniform.

  Said structure WHEREIN: It is preferable that the said soaking | uniform-heating member is arrange | positioned so that the vertical height may become higher than the said shaping | molding die.

  By arranging the soaking member in this way, it is possible to reliably avoid the situation in which the plate glass is directly heated by the heating means, so that the heating amount of each plate glass can be made more uniform.

  In the above configuration, the heat equalizing member is preferably arranged so as to surround the set group formed by arranging a plurality of sets of the forming die and the plate glass placed on the forming die without interruption.

  As a result, the heat transferred from the heating means to the plate glass through the heat equalizing member can be retained in the space inside the heat equalizing member, and the space inside the heat equalizing member can be heated evenly, thereby Each plate glass located in the space inside the member can be heated uniformly.

  In said structure, it is preferable that the cover member which covers the upper direction of plate glass is arrange | positioned above the soaking | uniform-heating member.

  As a result, the inner space and the outer space of the heat equalizing member can be completely partitioned, and the inner space of the heat equalizing member can be heated more uniformly and effectively. Can be heated more uniformly.

  Said structure WHEREIN: It is preferable that the heat flow rate of a heat equalizing member is smaller than the heat flow rate of a cover member.

  With this configuration, the lid member can more easily conduct heat than the heat equalizing member, and the amount of heat inside the heat equalizing member can be released mainly from the upper lid member, so that the plate glass can be heated appropriately. It becomes possible.

  In said structure, it is preferable that a shaping | molding die and a some plate glass are mounted on a setter, and a plate glass is heated, while a setter is conveyed.

  Thus, for example, like a continuous heating furnace that conveys a setter using a roller conveyor, it is difficult to place a molding die or glass sheet directly on it and place it at a predetermined position. In addition, the plate glass can be placed at a predetermined position on the setter by placing the mold on the setter flowing on the roller conveyor. And when a setter is conveyed on a roller conveyor, the plate glass arrange | positioned in the predetermined position on the setter can be heated, conveying.

  Further, in order to solve the above problems, the present invention is a method for forming a curved plate glass by bending a plurality of plate glasses softened by heating by a heating unit with a forming die, and forming the curved plate glass. It is characterized by a method of forming a curved plate glass in which the plate glass is heated by a heating means in a state in which a soaking member is disposed between the plate glass placed on the mold.

  Thereby, the effect similar to the shaping | molding apparatus of the curved plate glass already described can be acquired.

  As described above, according to the present invention, the plate glass is heated by the heating means indirectly through the soaking member. By indirectly heating the plate glass, variation in the heating amount of each plate glass can be reduced.

It is sectional drawing of the shaping | molding die which mounted plate glass. It is sectional drawing which showed the whole structure of the shaping | molding apparatus of the curved plate glass which concerns on 1st embodiment of this invention. FIG. 3 is a cross-sectional view taken along the line X-X ′ of FIG. 2. It is the top view which showed the whole image of the heating furnace which concerns on 1st embodiment of this invention. It is sectional drawing which showed the setter which concerns on 2nd embodiment of this invention.

  Hereinafter, embodiments according to the present invention will be described with reference to the drawings.

  First, the structure which mounted the plate glass which concerns on 1st embodiment of this invention in the shaping | molding die is demonstrated using FIG.

  The plate glass 1 is placed on a lower mold 2 as a mold, covered with an upper mold 3 from above, and sandwiched between the lower mold 2 and the upper mold 3. A set 4 in which the plate glass 1 and the lower mold 2 and the upper mold 3 are combined together is put into a heating furnace 5 described later.

The composition of the glass sheet 1, by mass%, a SiO ₂ 50 to 80%, the _{Al 2 O 3 5~30%, B} 2 O 3 0 to 15%, 1-20% of Na ₂ O, K ₂ O It is preferable to use a glass plate for chemical strengthening containing 0 to 10%. If the glass composition range is regulated as described above, it becomes easy to achieve both ion exchange performance and devitrification resistance at a high level.

In this embodiment, mullite is adopted as the material of the lower mold 2 and the upper mold 3. Mullite has a coefficient of thermal expansion of 55 × 10 ⁻⁷ / K. Moreover, in this embodiment, the plate glass 1 used as the object of shaping | molding is T2X-1 by Nippon Electric Glass. T2X-1 has a thermal expansion coefficient value of 91 × 10 ⁻⁷ / K. Here, as a material of the lower mold 2, alumina, zircon, a mixture thereof (for example, alumina zircon, zircon mullite) or the like can be employed in addition to mullite.

  Next, the internal structure of the heating furnace 5 into which the set 4 is charged will be described with reference to FIGS.

  A plurality of sets 4 (set group) is placed on a setter 6 made of a plate-like crystallized glass ceramic or the like, and is conveyed along with the setter 6 into the heating furnace 5 by a conveyor or the like. As shown in FIG. 2, the plurality of sets 4 are placed in parallel on the setter 6, and a dummy set 7 is placed at a position where the set 4 is not placed. And the surrounding brick 8 as a soaking | uniform-heating member which has heat insulation is enclosed in the circumference | surroundings of the several sets 4 and the dummy set 7 arrange | positioned in parallel. On the side wall 5 a of the heating furnace 5, a heater 9 as a heating unit is provided along a direction parallel to the conveying direction A of the setter 6. The size of each setter 6 is 2.0 m in width (conveying direction), 1.5 m in length, and 0.007 m in thickness.

  3 is a cross-sectional view taken along the line X-X ′ of FIG. 2. As shown in FIG. 3, a lid member 10 is provided above the surrounding brick 8 so as to cover the entire periphery thereof. As a result, the space S in which the set 4 is placed is completely partitioned into the internal space in the heating furnace 5 by the surrounding brick 8, the setter 6, and the lid member 10. In FIG. 2, the lid member 10 is drawn with a broken line.

  Finally, the structure of the heating furnace 5 and the conveying apparatus to the heating furnace 5 according to the first embodiment of the present invention will be described with reference to FIG.

  The setter 6 is conveyed in the direction indicated by the arrow A inside the heating furnace 5 by a conveying device such as a belt conveyor.

  Traversers 11 are provided at both longitudinal ends of the heating furnace 5 having the heater 9. The setter 6 transported to the end of the heating furnace 5 is removed from the transport line of the heating furnace 5 by the traverser 11 and transported in the direction C opposite to the direction of the arrow A. Then, the setter 6 carried to the start end side of the heating furnace 5 is returned again to the conveying line of the heating furnace 5 by the traverser 11 and is carried into the heating furnace 5. In this way, the setter 6 circulates a closed conveyance line having the heating furnace 5 in the middle by the belt conveyor and the traverser 11 arranged on both sides, and the heater inside the heating furnace 5 in the process of passing through the heating furnace 5 9 is heated.

  Hereinafter, the shaping | molding method of the curved plate glass using the shaping | molding apparatus of the said structure and the heating furnace 5 is demonstrated.

  In bending the plate glass 1, first, the lower mold 2 and the upper mold 3 placed on the setter 6 are preheated. And the plate glass 1 is inserted | pinched between the lower mold | type 2 and the upper mold | type 3 which were preheated (FIG. 1), and the plate glass 1 is supplied on the setter 6. FIG.

  Next, the setter 6 supplied with the plate glass 1 is conveyed toward the inside of the heating furnace 5 by a belt conveyor, and along the side wall 5a of the heating furnace 5 while the setter 6 passes through the inside of the heating furnace 5. The plurality of sets 4 arranged on the setter 6 are heated by the provided heater 9 (FIG. 2).

  Thereby, the plate glass 1 is heated and softened while being sandwiched between the lower mold 2 and the upper mold 3. At this time, as shown in FIG. 1, the softened glass sheet 1 is curved so as to follow the curved surface 2 a of the lower mold 2 and the curved surface 3 a of the upper mold 3, and the curved glass sheet 1 is formed.

  In the present invention, the enclosure brick 8 is disposed between the heater 9 and the set 4 in the present invention. That is, in the configuration in which the surrounding brick 8 is not disposed, no member is disposed between the set 4 and the heater 9, and the plate glass 1 is directly heated by the heater 9. And the heating amount of the plate glass 1 varies due to the distance between the heater 9 and each set 4 being different. For example, in the width direction of the setter 6 perpendicular to the transport direction A, the peripheral set 4 a arranged at the peripheral portion of the setter 6 is closer to the heater 9 than the central set 4 b arranged at the center of the setter 6. The peripheral set 4a is more likely to be heated.

  For this reason, by interposing the surrounding brick 8 between the heater 9 and the set 4 (sheet glass 1), the heater 9 is prevented from directly heating the sheet glass 1, and a part of the heat transfer from the heater 9 to the sheet glass 1 is avoided. Block it. Accordingly, the heater 9 indirectly heats the plate glass 1 and makes the temperature rise of the plate glass 1 moderate, thereby reducing variation in the heating amount of each plate glass 1.

  Further, in the configuration of the present embodiment, the surrounding bricks 8 are disposed so as to surround the plurality of sets 4 (set groups) arranged in parallel without being interrupted, and the lid member 10 is disposed above the surrounding bricks 8.

  By heating the set 4 including the plate glass 1 by the heater 9, the surrounding air is warmed. In the configuration in which the enclosure brick 8 and the lid member 10 are not arranged, the warmed air immediately diffuses to the outside.

  On the other hand, in the configuration of the embodiment in which the surrounding brick 8 and the lid member 10 are arranged, the surrounding brick 8 is first heated by the heater 9, and the space S inside thereof is warmed by the heated surrounding brick 8. . And since the space S is covered with the enclosing brick 8, the setter 6, and the lid member 10 as described above, the warmed air stays inside for a certain period of time without diffusing outside, and diffuses in the space S. . For this reason, the temperature in the space S is made uniform, and variations in the heating amount of the plate glass 1 can be reduced.

  By arranging the enclosure brick 8 between the heater 9 and the set 4, the amount of heat transfer from the heater 9 to each plate glass 1 is apparently reduced. However, by arranging the surrounding bricks 8 to equalize the heating of the plate glass 1, the heating amount of the plate glass 1 can be kept constant regardless of the position of the set 4 in the space S. The number of plate glasses 1 that can be placed on 6 increases. For this reason, the efficiency of heating improves and the energy loss of heating can be reduced.

  As shown in FIG. 3, the vertical height of the surrounding brick 8 is set to be higher than the vertical height of the set 4. Thus, when the lid member 10 is placed, the lid member 10 is placed on the surrounding brick 8 and the set 4 is not pressed by the lid member 10. For this reason, unnecessary stress is not applied to the plate glass 1. In addition, when the enclosure brick 8 is sufficiently high and the set 4 is completely hidden by the enclosure brick 8 when viewed from the heater 9 side, the amount of heat generated by the heater 9 exceeds the upper side of the enclosure brick 8. It is not carried to the plate glass 1. Thus, for example, it is possible to prevent the amount of heat that has passed over the enclosure brick 8 from reaching only the plate glass 1 arranged in the vicinity of the enclosure brick 8 and cause variation in the heating of the plate glass 1. Can be made uniform.

  Further, since the lid member 10 is arranged so as to cover the entire circumference of the surrounding brick 8, the lid can be covered without creating a gap in the space S, and the lid member 10 covers the surrounding brick 8 from above. The workability is also good.

  Here, if the effect of blocking heat transfer by the enclosing brick 8 is too large, the amount of heat of the heater 9 is not sufficiently conveyed to the set 4, the heating of the plate glass 1 is not sufficiently performed, and the heating efficiency is lowered. End up. Moreover, if the effect which interrupts heat transfer is too small, the effect which equalizes the heating of each plate glass 1 cannot fully be acquired.

  As described above, the effect of blocking the heat transfer of the surrounding brick 8 cannot be obtained if it is too large or too small, and must be adjusted to an appropriate value. Therefore, it is preferable that the thermal conductivity of the enclosure brick 8 is 0.1 to 10.0 [W / m · K] and the thickness thereof is in the range of 5 to 100 [mm]. In the embodiment of the present invention, mullite is used for the enclosure brick 8 and its thermal conductivity is set to 2.0 [W / m · K] and the thickness is set to 60 [mm]. However, the member used for the enclosure brick 8 is not limited to mullite, but zircon brick (thermal conductivity 5.5 [W / m · K]) or diatomaceous earth brick (thermal conductivity 0.23 [W / m · K]). Can be used.

  Further, as described above, the lid member 10 needs to keep the amount of heat in the space S for a certain period of time. At the same time, it is necessary to play the role of releasing the amount of heat in the space S to some extent from above.

  Thus, the heat transfer effect of the lid member 10 needs to be adjusted appropriately. Therefore, the lid member 10 preferably has a thermal conductivity of 0.1 to 20.0 [W / m · K] and a thickness of 1 to 50 [mm]. In the embodiment of the present invention, crystallized glass is used for the lid member 10, the thermal conductivity is set to 1.6 [W / m · K], and the thickness is set to 4 [mm].

Here, the value obtained by dividing the thermal conductivity 2.0 [W / m · K] of the enclosure brick 8 by the thickness 0.06 [m], that is, the thermal conductivity of the enclosure brick 8 is about 33.3 [W / M ² · K], and the thermal conductivity of the lid member 10, which is a value obtained by dividing the thermal conductivity 1.6 [W / m · K] of the lid member 10 by the thickness 0.004 [m], 400 [W / m ² · K]. The thermal conductivity of the enclosure brick 8 is as small as about 33.3 [W / m ² · K] with respect to the thermal conductivity of the lid member 10 of 400 [W / m ² · K]. It is difficult to pass. In this way, by making the value of the thermal conductivity of the lid member 10 relatively large with respect to the value of the surrounding brick 8, the amount of heat inside the space S can be released to the outside from the lid member 10 side. . For this reason, it is desirable to make the value of the heat transmissivity of the lid member 10 larger than the value of the enclosure brick 8. Moreover, it is preferable that the heat flow rate of the enclosure brick 8 exists in the range of 1-100 [W / m < ² > K], and the heat flow rate of the cover member 10 is 10-1000 [W / m < ² > K]. It is preferable that it exists in the range. However, it is a matter of course that a certain amount of heat is released from the setter 6 to the outside.

  In this way, by enclosing the entire circumference of the set group consisting of the plurality of sets 4 with the surrounding bricks 8 and covering with the lid member 10 from above, the amount of heat of the heater 9 is temporarily retained inside the space S, and thereafter It is preferable because it can be discharged to the outside and the plate glass 1 can be heated more uniformly.

  However, the present invention is not limited to the above configuration, and the surrounding brick 8 may be configured to surround a part of the plurality of sets 4. For example, the surrounding brick 8 is disposed only between the heater 9 and the set 4, and the transport direction of the setter 6 is determined. It is good also as a structure which does not arrange | position the surrounding brick 8 in the perpendicular | vertical direction (up-down direction of FIG. 2). Moreover, it is good also as a structure which does not provide the cover member 10. FIG.

  A plurality of sets 4 are arranged in parallel on the surface of the setter 6, but a dummy set 7 is arranged instead at a position where the set 4 is not arranged, so that no empty space is created on the surface of the setter 6. It has a simple structure. The reason why the dummy set 7 is arranged at a position where the set 4 is not arranged will be described below.

  Considering the efficiency of heating, it is preferable to arrange as many sets 4 as possible on the surface of the setter 6. However, the maximum number of sets 4 cannot always be placed on the setter 6 depending on the required quantity for bending the glass sheet 1. And if the number of the sets 4 to mount changes, the heat capacity of the whole space S will change, and the curvature accuracy of the plate glass 1 will vary with the number of the sets 4 to be mounted. Further, since the heat capacity varies between the position where the set 4 is disposed and the position where the set 4 is not disposed, the accuracy of the curvature of the plate glass 1 also varies between the sets 4 mounted on the same setter 6.

  For this reason, by placing the dummy set 7 at a position where the set 4 is not placed, the same condition is always maintained regardless of the quantity of the plate glass 1 to be curved, that is, the quantity of the set 4 placed on the setter 6. Heating can be performed, and the accuracy of bending of the glass sheet 1 can be stabilized.

  In the configuration of the embodiment, the dummy set 7 includes a combination of the lower mold 2 and the upper mold 3, but is not limited thereto, and may be adjusted so that the heat capacity thereof is approximately the same as that of the set 4.

  When each setter 6 passes through the inside of the heating furnace 5, each setter 6 is set in a state where it is spaced by a distance B in the transport direction A. At this time, if the interval B between the setters 6 is widened, not only is the amount of heating by the heater 9 corresponding to the interval B wasted, but in the portion of the interval B, compared to the case where the setter 6 is arranged without a gap. The heat capacity is small only in the gap B. For this reason, the front end and the rear end of the setter 6 near the interval B are likely to be hotter than the center in the transport direction, and the heating amount of each set 4 varies. For this reason, it is preferable to set the interval B between the setters 6 to a minimum, and in the first embodiment, it is set to 50 [mm].

  Then, as shown in FIG. 4, the setter 6 is transported to the rear end of the heating furnace 5, and the plate glass 1 that has passed through the heating furnace 5 is cooled in the process of transporting in the direction C, and the lower mold 2 and the upper mold 3. Taken from.

  A new plate glass 1 for bending is supplied to the lower mold 2 and the upper mold 3 from which the plate glass 1 after heating and cooling is taken out. Then, the setter 6 into which the new plate glass 1 has been charged is transported to the start end side of the heating furnace 5 and is transported again into the heating furnace 5 by the traverser 11. Note that the surrounding bricks 8 placed on the respective setters 6 are always placed at predetermined positions on the surface of the setter 6 or are fixed. And in the process of taking out and putting in the plate glass 1 described above, the lid member 10 is removed and the plate glass 1 of each set 4 is taken out, and then a new plate glass 1 is supplied between the lower mold 2 and the upper mold 3. The

  In this way, the setter 6 is caused to flow without interruption on the circumference where the traverser 11 is arranged at both ends, and the plate glass 1 placed on the setter 6 is heated in the heating furnace 5 in the middle thereof. As described above, the heating furnace 5 is a continuous heating furnace that continuously heats the glass sheet 1 by the heater 9. Thereby, the heating of the heater 9 is not wasted, and the setter 6 keeps flowing in the heating furnace 5 so that the heat capacity inside the heating furnace 5 can be kept constant. The heating amount can be made uniform.

  The first embodiment of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the scope of the present invention.

  In the set 4 according to the first embodiment, the lower mold 2, the plate glass 1 placed on the lower mold 2, and the upper mold 3 are combined as one combination, but the upper mold 3 may not be included. . In this case, the plate glass 1 is placed on the curved surface 2 a of the lower mold 2 and heated and softened, and the plate glass 1 is bent by following the shape of the curved surface 2 a by its own weight.

  The transport means for transporting the setter 6 in the direction of arrow A and the direction of arrow C is not limited to a belt conveyor, as long as the setter 6 can be transported in the above-described direction at a constant speed. For example, a conveyor using rollers may be used. Moreover, when using a belt conveyor for a conveyance means, the setter 6 is not necessarily required and the structure by which the surrounding brick 8, the set 4, and the dummy set 7 are mounted directly on a belt may be sufficient.

  In addition, the setter 6 is transported into the heating furnace 5 and heated by the heater 9, but the plate glass 1 may be heated by the means according to the present invention, and the configuration of the traverser 11 and the like is not necessarily required.

  The heating means is not limited to the heater (radiant heat transfer type heating device) of the first embodiment, but may be, for example, a burner (convection heat transfer type heating device), or it is sufficient that the glass sheet 1 can be continuously heated.

In the configuration of the first embodiment, the enclosure brick 8 and the lid member 10 are made of a single material, and the thermal conductivity is divided by the thermal conductivity of the material (temporarily k) by the thickness of the material (temporarily m). The quotient (k / m) was calculated and compared. However, the case where the enclosure brick 8 and the cover member 10 are the multilayer structures which consist of a different material is also considered. In this case, for example, the surrounding brick 8 has a material D1 having a thickness m1 [m] and a thermal conductivity k1 [W / m · K], and a thickness m2 [m] and a thermal conductivity k2 [W / m · K]. If it consists of the layer structure of the material D2, the thermal conductivity U of the enclosure brick 8 is
U [W / m ² · K] = 1 / (m1 / k1 + m2 / k2)
And can be compared.

  Further, in the configuration of the first embodiment, the surrounding bricks 8 are arranged on the entire circumference in the vicinity of the end surface of the setter 6, but, for example, as shown in FIG. (Second embodiment). In this case, for the purpose of always keeping the heat capacity in the transport direction A constant, the dummy set 7 and the dummy enclosure brick 12 having the same heat capacity as the enclosure brick 8 are also arranged outside the space S enclosed by the enclosure brick 8. Is done.

1 Sheet glass 2 Lower mold (molding mold)
3 Upper mold 4 Set 5 Heating furnace 6 Setter 7 Dummy set 8 Fence brick (soaking material)
9 Heater (heating means)
10 Lid member 11 Traverser 12 Dummy fence brick

Claims (7)

A curved plate glass molding apparatus comprising: heating means for heating a plurality of plate glasses; and a molding die for shaping the curved plate glass by bending the plate glass heated and softened by the heating means,
An apparatus for forming a curved plate glass, in which a heat equalizing member having heat insulation properties is disposed between the heating means and the plate glass placed on the mold.   The apparatus for forming curved plate glass according to claim 1, wherein the heat equalizing member is arranged such that a vertical height thereof is higher than that of the mold.   The curve according to claim 1 or 2, wherein the heat equalizing member is disposed so as to surround without surrounding the set group formed by arranging a plurality of sets of the mold and the plate glass placed on the mold. Sheet glass forming equipment.   The shaping | molding apparatus of the curved plate glass of any one of Claim 1 to 3 by which the cover member which covers the upper direction of the said plate glass is arrange | positioned above the soaking | uniform-heating member.   The apparatus for forming a curved plate glass according to claim 4, wherein a heat flow rate of the heat equalizing member is smaller than a heat flow rate of the lid member.   The said shaping | molding die and these several glass plates are mounted on a setter, The said glass plate is heated, conveying the said setter, The shaping | molding apparatus of the curved plate glass of any one of Claim 1 to 5. A method of forming a curved plate glass in which a plurality of plate glasses softened by heating by a heating means are bent with a forming mold to form a curved plate glass,
A method of forming a curved plate glass, wherein the plate glass is heated by the heating unit in a state where a soaking member is disposed between the heating unit and the plate glass placed on the mold.

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