JPH048378B2 - - Google Patents
Info
- Publication number
- JPH048378B2 JPH048378B2 JP61162021A JP16202186A JPH048378B2 JP H048378 B2 JPH048378 B2 JP H048378B2 JP 61162021 A JP61162021 A JP 61162021A JP 16202186 A JP16202186 A JP 16202186A JP H048378 B2 JPH048378 B2 JP H048378B2
- Authority
- JP
- Japan
- Prior art keywords
- glass plate
- bent
- heating furnace
- heating zone
- locally heated
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011521 glass Substances 0.000 claims description 84
- 238000010438 heat treatment Methods 0.000 claims description 54
- 230000007246 mechanism Effects 0.000 claims description 42
- 238000005452 bending Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 11
- 238000010583 slow cooling Methods 0.000 claims description 6
- 230000007723 transport mechanism Effects 0.000 description 17
- 238000009415 formwork Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000012546 transfer Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000011437 continuous method Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009372 pisciculture Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0256—Gravity bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Description
【発明の詳細な説明】
＜産業上の利用分野＞
本発明はガラス板を局部的に加熱し、ガラス板
の自重で局部的加熱部分を屈曲するとともに、屈
曲されたガラス板の側部を押圧する様にしたこと
を特徴とするガラス板の屈曲方法及び装置に関す
るものである。[Detailed Description of the Invention] <Industrial Application Field> The present invention heats a glass plate locally, bends the locally heated portion by the weight of the glass plate, and presses the side of the bent glass plate. The present invention relates to a method and device for bending a glass plate, characterized in that the bending method and device are characterized in that the bending method and device are characterized in that the bending method and device are characterized in that
＜従来の技術＞
ガラス板を加熱して直角にまたは弧状に屈曲す
るようにした従来の方法又は装置としては、例え
ば特公昭52−43855号公報、特公昭54−32058号公
報、特公昭54−20207号公報、特公昭54−39405号
公報、特公昭35−16443号公報等に記載されてい
る。<Prior art> Conventional methods or devices for heating a glass plate to bend it at right angles or in an arc shape include, for example, Japanese Patent Publications No. 1982-43855, Japanese Patent Publication No. 54-32058, and Japanese Patent Publication No. 54-32058. It is described in Japanese Patent Publication No. 20207, Japanese Patent Publication No. 54-39405, Japanese Patent Publication No. 35-16443, etc.
上記した各方法や装置の公報において、特公昭
52−43855号公報、及び特公昭54−20207号公報、
特公昭35−16443号公報に記載のものは連続式で、
長尺な加熱炉内にガラス内を通して屈曲させるの
である。 In the publications of the above-mentioned methods and devices,
Publication No. 52-43855, and Special Publication No. 54-20207,
The one described in Special Publication No. 35-16443 is a continuous type,
The glass is passed through a long heating furnace and bent.
又、特公昭54−32058号公報、及び特公昭54−
39405号公報に記載のものはバツチ式で、加熱し
たガラス板を加工装置で無理に屈曲させるのであ
る。 Also, Special Publication No. 54-32058, and Special Publication No. 54-
The one described in Publication No. 39405 is a batch type, in which a heated glass plate is forcibly bent using a processing device.
＜発明が解決しようとする問題点＞
しかし、上記したガラス板の屈曲方法が連続式
であつてもバツチ式であつても下記の様な欠点が
有る。<Problems to be Solved by the Invention> However, whether the above-described glass plate bending method is a continuous method or a batch method, there are the following drawbacks.
即ち、連続式であればガラス板を加熱炉内に連
続的に供給できるので処理効率が良いが、ガラス
板の屈曲を大きくすることができないので、せい
ぜい自動車用のガラス板にしか使用できない。そ
して、加熱炉内での屈曲状態を高精度にするため
に複雑な装置が必要である。 That is, if the continuous type is used, the glass plate can be continuously fed into the heating furnace, so the processing efficiency is good, but since the bending of the glass plate cannot be increased, it can only be used for glass plates for automobiles. In addition, a complicated device is required to achieve high precision in the bending state within the heating furnace.
又、バツチ式ではガラス板を比較的大きく屈曲
することができるが、ガラス板を１枚毎加熱炉に
供給し、屈曲したら加熱炉から取り出して再び新
たなガラス板を供給しなければならないので極め
て処理効率が悪く、生産性の乏しい。 In addition, although the batch type allows the glass plates to be bent to a relatively large extent, it is extremely difficult to do so because each glass plate must be fed into the heating furnace one by one, and once bent, it must be taken out of the heating furnace and a new glass plate is fed again. Processing efficiency is poor and productivity is poor.
＜問題点を解決するための手段＞
本発明は上記に鑑み提案されたもので、加熱ゾ
ーンと徐冷ゾーンとを有する連続式加熱炉の内部
にガラス板を通過させ、加熱ゾーンでは補助ヒー
タによりガラス板の一部を局部的に加熱して軟化
状態にし、局部的加熱部分より外側のガラス板の
自重で局部的加熱部分を屈曲し、また屈曲したガ
ラス板の側部を押圧するようにしたことを特徴と
することにより、連続式及びバツチ式の長所のみ
を採用して効率的に、しかも極めて高精度にガラ
ス板を屈曲処理するようにしたものである。<Means for Solving the Problems> The present invention has been proposed in view of the above.A glass plate is passed through a continuous heating furnace having a heating zone and a slow cooling zone, and an auxiliary heater is used to heat the glass plate in the heating zone. A part of the glass plate is locally heated to soften it, the locally heated part is bent by the weight of the glass plate outside the locally heated part, and the side of the bent glass plate is pressed. By adopting only the advantages of the continuous type and the batch type, the glass plate can be bent efficiently and with extremely high precision.
＜実施例＞
以下に本発明を図面に示す実施例に基づいて説
明する。<Example> The present invention will be described below based on an example shown in the drawings.
本発明に使用する連続式加熱炉１は長尺なトン
ネル状で、一端に入口２を、他端に出口３を夫々
有し、連続式加熱炉１の内部は入口２から長さの
途中までが加熱ゾーン４で、該加熱ゾーン４の後
端から出口３までが徐冷ゾーン５である。 The continuous heating furnace 1 used in the present invention has a long tunnel shape, and has an inlet 2 at one end and an outlet 3 at the other end, and the inside of the continuous heating furnace 1 extends from the inlet 2 to the middle of the length. is the heating zone 4, and the area from the rear end of the heating zone 4 to the outlet 3 is the slow cooling zone 5.
なお、加熱ゾーン４には入口２に近い部分に予
熱ゾーンを設定することもできる。 Note that a preheating zone can also be set in a portion of the heating zone 4 near the inlet 2.
上記した連続式加熱炉１の底部には左右一対の
内部搬送機構６を長さ方向に設置し、連続式加熱
炉１の外側にも長さ方向に沿つて外部搬送機構７
を設置し、更に入口２から外部に延びる内部搬送
機構６の端部と外部搬送機構７の端部、及び出口
３から外部に延びる内部搬送機構６の端部と外部
搬送機構７の端部との間を移送機構８で接続す
る。 At the bottom of the continuous heating furnace 1 described above, a pair of left and right internal conveyance mechanisms 6 are installed in the length direction, and an external conveyance mechanism 7 is also installed outside the continuous heating furnace 1 along the length direction.
and an end of the internal transport mechanism 6 and an end of the external transport mechanism 7 extending from the inlet 2 to the outside, and an end of the internal transport mechanism 6 and an end of the external transport mechanism 7 extending from the outlet 3 to the outside. A transfer mechanism 8 connects between them.
上記した内部搬送機構６及び外部搬送機構７は
無端状のチエーンで、又、各移送機構８は内部搬
送機構６若くは外部搬送機構７の端部に載置して
いる台車を吊り上げて外部搬送機構７若しくは内
部搬送機構６にまで移送する走行クレーン機構で
ある。 The internal transport mechanism 6 and the external transport mechanism 7 described above are endless chains, and each transport mechanism 8 lifts a cart placed on the end of the internal transport mechanism 6 or the external transport mechanism 7 for external transport. This is a traveling crane mechanism that transfers the material to the mechanism 7 or the internal transport mechanism 6.
上記した内部搬送機構６には入口２からガラス
板ａを載せた台車９を順に載置し、内部搬送機構
６の間歇的な移行で連続式加熱炉１内を通過させ
る。 Carts 9 carrying glass plates a are sequentially placed on the internal conveyance mechanism 6 from the entrance 2, and are passed through the continuous heating furnace 1 by intermittent transitions of the internal conveyance mechanism 6.
上記した台車９は第３図で示すように例えばア
ングル材を組んだ枠状で、下方の脚枠部１０の左
右下端には内部搬送機構６に載せる受板１１を有
し、脚枠部１０の上面に隆起する受枠部１２の上
面及び左右の側面に板状の型枠１３を有する。こ
の型枠１３は上面部１４と、該上面部１４の左右
側縁から垂直に垂下する側面部１５，１５とから
成る下向きコ字状である。そして、上記上面部１
４の前縁及び後縁には、上面部１４の上面に載せ
るガラス板ａの前縁及び後縁を支持する支持板１
６を設ける。 As shown in FIG. 3, the above-mentioned trolley 9 has a frame shape made of angle members, for example, and has receiving plates 11 on the left and right lower ends of the lower leg frame 10 to be placed on the internal conveyance mechanism 6. A plate-shaped formwork 13 is provided on the upper surface and left and right side surfaces of the receiving frame portion 12 which is raised on the upper surface. The formwork 13 has a downward U-shape, and includes an upper surface portion 14 and side portions 15, 15 that hang down perpendicularly from the left and right side edges of the upper surface portion 14. Then, the upper surface part 1
Support plates 1 for supporting the front and rear edges of the glass plate a placed on the upper surface of the upper surface part 14 are disposed on the front and rear edges of the glass plate 4.
6 will be provided.
又、各側面部１５の下方には上面部１４に載せ
たガラス板ａが屈曲したときに屈曲部下端を係止
する係止機構１７を設ける。 Furthermore, a locking mechanism 17 is provided below each side surface portion 15 to lock the lower end of the bent glass plate a placed on the top surface portion 14 when the glass plate a is bent.
この係止機構１７は側面部１５の下方中央に下
端が止着された板バネ状の受片１８と、該受片１
８の左右に設けられた取付台１９に後方が止着さ
れた板バネ状の係止片２０とから成り、係止片２
０は斜め上方を向いて自由端が側面部１５の表面
に臨んでいる。 This locking mechanism 17 includes a plate spring-shaped receiving piece 18 whose lower end is fixed to the lower center of the side surface 15, and the receiving piece 18.
It consists of a plate spring-shaped locking piece 20 whose rear end is fixed to mounting bases 19 provided on the left and right sides of the locking piece 8.
0 faces obliquely upward and its free end faces the surface of the side surface 15.
前記した連続式加熱炉１の加熱ゾーン４は複数
のセクシヨンに区分してあり、図面の実施例では
入口２から始まる第１のセクシヨン２１1から順
に奥に向つて第８のセクシヨン２１8まで形成さ
れている。 The heating zone 4 of the continuous heating furnace 1 described above is divided into a plurality of sections, and in the embodiment shown in the drawings, the first section 211 starts at the inlet 2 and extends inward to the eighth section 218 . has been done.
上記した加熱ゾーン４の内部において、第３の
セクシヨン２１3及び第４のセクシヨン２１4には
左右に保護板２２を設ける。この保護板２２は台
車９が通過可能な間隔で左右に対設してあり、下
方が炉壁の下端に向つて傾斜している。この保護
板２２は、台車９に載るガラス板ａの側部が第３
のセクシヨン２１3又は第４のセクシヨン２１4に
おいて急激に屈曲した場合に屈曲部分を受け止め
るものである。 Inside the heating zone 4 described above, protection plates 22 are provided on the left and right sides of the third section 21 3 and the fourth section 21 4 . The protection plates 22 are disposed opposite to each other on the left and right at intervals that allow the carriage 9 to pass through, and the lower part thereof is inclined toward the lower end of the furnace wall. This protective plate 22 has a third side portion of the glass plate a placed on the cart 9.
When the section 21 3 or the fourth section 21 4 suddenly bends, the bent portion is caught.
前記した加熱ゾーン４の内部において、第３の
セクシヨン２１3から第８のセクシヨン２１8まで
の上方には補助ヒータ２３を設ける。この補助ヒ
ータ２３は各セクシヨン２１毎に連続状に設けて
あり、第４図で示すように連続式加熱炉１の内部
の上方左右に位置している。そして、各セクシヨ
ン２１の左右の補助ヒータ２３は両端に支持板２
４を有し、各支持板２４の上方に設けた左右のピ
ン２５が上下調節機構２６に係合している。 Inside the heating zone 4 described above, an auxiliary heater 23 is provided above the third section 21 3 to the eighth section 21 8 . The auxiliary heaters 23 are continuously provided in each section 21, and are located on the upper left and right sides of the interior of the continuous heating furnace 1, as shown in FIG. The left and right auxiliary heaters 23 of each section 21 have supporting plates 2 at both ends.
4, and left and right pins 25 provided above each support plate 24 engage with a vertical adjustment mechanism 26.
この上下調節機構２６は上方が連続式加熱炉１
の天井面から上方に延在する上向きコ字状であ
る。また各支持板２４は先端が連続式加熱炉１の
外部に延在する横長な棒状の左右調節機構２７に
連結されている。したがつて、上下調節機構２６
及び左右調節機構２７に設けたネジ機構２８を調
節することにより、上下調節機構２６によつて支
持板２４の上下位置を調整することができるとと
もに、左右調節機構２７によつて支持板２４の左
右位置を調節することができ、各補助ヒータ２３
の位置の変更が可能になる。 This vertical adjustment mechanism 26 has an upper part that is connected to the continuous heating furnace 1.
It has an upward U-shape that extends upward from the ceiling surface. Further, each support plate 24 is connected to a horizontally long rod-shaped left/right adjustment mechanism 27 whose tip extends outside the continuous heating furnace 1 . Therefore, the vertical adjustment mechanism 26
By adjusting the screw mechanism 28 provided in the horizontal adjustment mechanism 27, the vertical position of the support plate 24 can be adjusted by the vertical adjustment mechanism 26, and the left and right position of the support plate 24 can be adjusted by the horizontal adjustment mechanism 27. The position of each auxiliary heater 23 can be adjusted.
The position of can be changed.
上記した上下調節機構２６及び左右調節機構２
７により補助ヒータ２３の位置を調節可能にした
のは、ガラス板ａの屈曲部分の位置を変更調節す
るとともに、効率良くガラス板ａを屈曲させるた
めである。 The above-mentioned vertical adjustment mechanism 26 and left and right adjustment mechanism 2
7 allows the position of the auxiliary heater 23 to be adjusted in order to change and adjust the position of the bent portion of the glass plate a and to efficiently bend the glass plate a.
上記した連続式加熱炉１の第８のセクシヨン２
１8には局部的加熱部分から屈曲するガラス板の
側部を位置設定する押圧機構２９を設ける。この
押圧機構２９は連続式加熱炉１の左右の側壁に対
向状に設けられ、第４図で示すように連続式加熱
炉１の外部に設けたシリンダ機構３０の作動によ
り移動するロツド３１を連続式加熱炉１の内部に
延在させ、ロツド３１の先端に設けた軸受３２に
横長な押圧材３３の支持杆３４を軸着し、押圧材
３３を上下に回動可能に支持する。そして、上記
支持杆３４にはウエイト３５を後方に延びるよう
に設け、常には押圧材３３が前方に向くようにウ
エイト３５で付勢する。上記した押圧材３３は例
えば横長な棒材の外周面に耐熱性の布材を厚く巻
成したもので、布材がガラス板に接触して緩衝機
能を有する。 Eighth section 2 of the continuous heating furnace 1 described above
18 is provided with a pressing mechanism 29 for positioning the side of the glass plate that bends from the locally heated portion. This pressing mechanism 29 is provided oppositely on the left and right side walls of the continuous heating furnace 1, and as shown in FIG. A support rod 34 of an oblong pressing member 33 is pivotally attached to a bearing 32 provided at the tip of a rod 31 that extends inside the type heating furnace 1, and supports the pressing member 33 so as to be rotatable up and down. A weight 35 is provided on the support rod 34 so as to extend rearward, and the weight 35 is always biased so that the pressing member 33 faces forward. The above-mentioned pressing material 33 is, for example, a horizontally long bar material with a heat-resistant cloth material wound thickly around the outer peripheral surface, and the cloth material comes into contact with the glass plate and has a buffering function.
又、前記した連続式加熱炉１の入口２の一側に
は台車９に載るガラス板の位置設定機構３６を設
置する。この位置設定機構３６は第８図で示すよ
うにシリンダ３７のロツド３８の長さの途中に規
制片３９を直立状に設けたもので、ロツド３８の
先端から規制片３９の前面までの長さＬを屈曲す
るガラス板の側部と同一の長さに設定する。上記
規制片３９はロツド３８の長さ方向に沿つて移動
可能で、しかもボルト等により規制片３６をロツ
ド３８に固定状にすることができる。 Further, on one side of the entrance 2 of the continuous heating furnace 1 described above, a position setting mechanism 36 for the glass plate mounted on the cart 9 is installed. As shown in FIG. 8, this position setting mechanism 36 has a regulating piece 39 provided upright in the middle of the length of a rod 38 of a cylinder 37, and the length from the tip of the rod 38 to the front surface of the regulating piece 39 is Set L to be the same length as the side of the glass plate to be bent. The regulating piece 39 is movable along the length of the rod 38, and the regulating piece 36 can be fixed to the rod 38 with a bolt or the like.
したがつて、規制片３９の位置を適宜に設定す
ることにより屈曲するガラス板の側部の長さを自
由に変化させることができる。 Therefore, by appropriately setting the position of the regulating piece 39, the length of the side portion of the bent glass plate can be freely changed.
本発明のガラス板の屈曲装置は上記した構成
で、この屈曲装置を使用してガラス板を屈曲する
方法に付いて以下に説明する。 The glass plate bending device of the present invention has the above-described configuration, and a method for bending a glass plate using this bending device will be described below.
連続式加熱炉１の加熱ゾーン４の内部はガス、
重油、電気等を熱源としてバーナ等により常時加
熱され、内部雰囲気温度がガラス板の軟化温度
（580℃）より僅かに低い温度（550℃）程度に設
定されている。そして、内部搬送機構６は入口２
で載せた台車９が連続式加熱炉１の内部を間歇的
に通過して出口３の方向に移行し、外部搬送機構
７は上記内部搬送機構６と同一速度で間歇的に出
口３から入口２に向つて移行する。又、第３のセ
クシヨン２１3から第８のセクシヨン２１8までの
間に位置する補助ヒータ２３は電気を熱源にして
加熱し、台車９に載置されて加熱ゾーン４を通過
するガラス板を局部的に加熱して軟化させるので
ある。 The interior of the heating zone 4 of the continuous heating furnace 1 is gas,
It is constantly heated by a burner, etc. using heavy oil, electricity, etc. as a heat source, and the internal atmosphere temperature is set to a temperature (550°C) slightly lower than the softening temperature of the glass plate (580°C). The internal transport mechanism 6 is connected to the entrance 2.
The trolley 9 loaded with the above moves intermittently through the interior of the continuous heating furnace 1 toward the exit 3, and the external transport mechanism 7 moves intermittently from the exit 3 to the inlet 2 at the same speed as the internal transport mechanism 6. move towards. Further, the auxiliary heater 23 located between the third section 21 3 and the eighth section 21 8 uses electricity as a heat source to heat the glass plate placed on the cart 9 and passing through the heating zone 4. It is heated to soften it.
一方、入口２側の移送機構８に吊持されて外部
搬送機構７から入口２の内部搬送機構６に載置さ
れる台車９の型枠１３の上面には、入口２の位置
において上面部１４に横長なガラス板ａを手動又
は機械的手段により載置し、シリンダ３７の伸張
作動によりロツド３８が延びて先端が型枠１３の
側面部に当接し、規制片３９がガラス板ａの側端
に接触してガラス板ａの左右方向の位置を型枠１
３の上面において設定する。この場合、ガラス板
ａの前縁及び後縁は型枠１３の前後の支持板１６
に係止されているので、前後方向にずれ動くこと
がない。 On the other hand, on the upper surface of the formwork 13 of the trolley 9 which is suspended by the transfer mechanism 8 on the entrance 2 side and is placed from the external transfer mechanism 7 to the internal transfer mechanism 6 of the entrance 2, there is an upper surface portion 14 at the entrance 2 position. A horizontally long glass plate a is placed manually or mechanically on the cylinder 37, and the rod 38 is extended by the extension action of the cylinder 37 so that its tip comes into contact with the side surface of the formwork 13, and the regulating piece 39 touches the side edge of the glass plate a. Contact formwork 1 to adjust the horizontal position of glass plate a.
Set on the top surface of 3. In this case, the front and rear edges of the glass plate a are connected to the front and rear support plates 16 of the formwork 13.
Since it is locked, it will not shift in the front-back direction.
上記の様に入口２において位置が正確に設定さ
れて型枠１３の上面部１４の上面に載置されたガ
ラス板ａを有する台車９は、内部搬送機構６の間
歇的移行により入口２から連続式加熱炉１の内部
に入つて加熱ゾーン４の第１のセクシヨン２１1
から第８のセクシヨン２１8を順に間歇的に通過
することになる。 As described above, the carriage 9 having the glass plate a placed on the upper surface of the upper surface part 14 of the formwork 13 with its position accurately set at the entrance 2 is continuously moved from the entrance 2 by intermittent shifting of the internal conveyance mechanism 6. Entering the interior of the heating furnace 1 and the first section 21 of the heating zone 4
The train then passes through the eighth section 218 intermittently.
この場合、台車９に載つて第１及び第２のセク
シヨン２１を通過するガラス板ａは軟化温度より
僅かに低い温度にまで加熱されるが、軟化状態に
はならない。そして、ガラス板ａが第３のセクシ
ヨン２１3から第８のセクシヨン２１8を順に通過
する過程では、左右の各補助ヒータ２３が最も接
近するガラス板ａの途中部分を局部的に加熱す
る。 In this case, the glass plate a mounted on the cart 9 and passing through the first and second sections 21 is heated to a temperature slightly lower than the softening temperature, but does not become softened. In the process in which the glass plate a passes from the third section 21 3 to the eighth section 21 8 in order, the left and right auxiliary heaters 23 locally heat the intermediate portion of the glass plate a that approaches the glass plate a.
この場合、台車９が第３のセクシヨン２１3か
ら第８のセクシヨン２１8に移動するにしたがい
ガラス板ａが局部的に加熱されて軟化する。 In this case, as the cart 9 moves from the third section 21 3 to the eighth section 21 8 , the glass plate a is locally heated and softened.
したがつて、ガラス板ａの局部的加熱部分より
外側の側部が自重で次第に屈曲し、第８のセクシ
ヨン２１8にまで達するとガラス板ａが上面部分
a1と左右の側面部分a2とによる下向きコ字状に
近い形状になるかもしれないが、上面部分a1と
側面部分a2とは必ずしも直角状になるとは限ら
ない。 Therefore, the side portion of the glass plate a outside the locally heated portion gradually bends due to its own weight, and when it reaches the eighth section 218 , the glass plate a bends at the upper surface.
Although the shape may be close to a downward U-shape formed by a1 and the left and right side portions a2, the upper surface portion a1 and the side portions a2 are not necessarily at right angles.
このため、第８のセクシヨン２１8の位置では、
台車９が到達したら左右の押圧機構２９が作動し
てシリンダ機構３０によりロツド３１が台車９に
向つて伸張し、各押圧材３３が下方に向いている
各側面部分a2を押圧する。 Therefore, at the position of the eighth section 21 8 ,
When the truck 9 arrives, the left and right pressing mechanisms 29 are activated, the cylinder mechanism 30 extends the rod 31 toward the truck 9, and each pressing member 33 presses each side surface portion a2 facing downward.
そして、押圧材３３により押圧された側面部分
a2は台車９の側面部１５に向つて押され、第６
図で示すように下端が係止片２０を滑動し、内面
が受片１８で支持されると外面が係止片２０の先
端で係合され、この状態で上面部分a1と各側面
部分a2とは直角状に設定されて外れることがな
い。又、側面部分a2が係止片２０で係止される
とロツド３１が戻り移動して押圧材３３が側部分
a2の外面から離れるので、台車９が次に間歇的
に移行する場合に押圧材３３が側部分a2を擦ら
ない。 Then, the side portion pressed by the pressing material 33
a2 is pushed toward the side surface 15 of the truck 9, and the sixth
As shown in the figure, when the lower end slides on the locking piece 20 and the inner surface is supported by the receiving piece 18, the outer surface is engaged with the tip of the locking piece 20, and in this state, the upper surface portion a1 and each side surface portion a2 are set at right angles and will not come off. Also, when the side part a2 is locked by the locking piece 20, the rod 31 moves back and the pressing member 33 locks the side part a2.
Since it is separated from the outer surface of a2, the pressing member 33 does not rub the side portion a2 when the cart 9 moves intermittently.
上記において、補助ヒータ２３の直径が短いと
ガラス板の屈曲部分の径が小さくなり、補助ヒー
タ２３の直径が長いとガラス板の屈曲部分の径が
大きくなる。そして、補助ヒータ２３の表面温度
が低いとガラス板の軟化速度が遅いので屈曲する
速度が遅くなり、補助ヒータ２３の表面温度が高
いとガラス板の軟化速度が早いので屈曲する速度
が速くなる。又、補助ヒータ２３とガラス板との
距離が短いとガラス板は急速に加熱されるので屈
曲部分の径が小さくなるとともに屈曲速度が速く
なり、補助ヒータ２３とガラス板との距離が長い
とガラス板は緩慢に加熱されるので屈曲部分の径
が大きくなるとともに屈曲速度が遅くなる。 In the above, when the diameter of the auxiliary heater 23 is short, the diameter of the bent portion of the glass plate becomes small, and when the diameter of the auxiliary heater 23 is long, the diameter of the bent portion of the glass plate becomes large. When the surface temperature of the auxiliary heater 23 is low, the softening speed of the glass plate is slow, so the bending speed is slow, and when the surface temperature of the auxiliary heater 23 is high, the glass plate softening speed is fast, so the bending speed is fast. Also, if the distance between the auxiliary heater 23 and the glass plate is short, the glass plate will be heated rapidly, so the diameter of the bent portion will become smaller and the bending speed will become faster. If the distance between the auxiliary heater 23 and the glass plate is long, the glass plate will Since the plate is heated slowly, the diameter of the bent portion becomes larger and the bending speed becomes slower.
したがつて、上記した補助ヒータ２３とガラス
板との関係から、ガラス板の屈曲部分の構造や状
態を自由に調整することができる。 Therefore, the structure and condition of the bent portion of the glass plate can be freely adjusted based on the relationship between the auxiliary heater 23 and the glass plate described above.
台車９が間歇的に移行して第８のセクシヨン２
１8から徐冷ゾーン５を通過すると、ガラス板ａ
はコ字状に屈曲したまま次第に冷却され、屈曲部
分が硬化する。そして、台車９が出口３にまで到
着すると連続式加熱炉１の外部に出て移送機構８
で吊り上げられ、外部搬送機構７に載つて間歇的
に移行するのでガラス板ａは外部搬送機構７の途
中で充分に冷却される。したがつて、外部搬送機
構７の途中でガラス板ａを台車９から外し、台車
９のみを外部搬送機構７から連続式加熱炉１の入
口２にまで移動させればよい。 The trolley 9 moves intermittently to the 8th section 2.
1 After passing through the slow cooling zone 5 from 8 , the glass plate a
is gradually cooled while being bent in a U-shape, and the bent part hardens. When the trolley 9 reaches the exit 3, it exits the continuous heating furnace 1 and moves to the transfer mechanism 8.
Since the glass plate a is lifted up, placed on the external transport mechanism 7, and moved intermittently, the glass plate a is sufficiently cooled midway through the external transport mechanism 7. Therefore, it is sufficient to remove the glass plate a from the cart 9 midway through the external transport mechanism 7 and move only the cart 9 from the external transport mechanism 7 to the entrance 2 of the continuous heating furnace 1.
上記した台車９は連続式加熱炉１内に連続的に
供給され、各台車９が列状になつて連続式加熱炉
１の内部を間歇的に通過する。したがつて、入口
２において各台車９の上面にガラス板ａを載置す
ると連続的にガラス板ａを連続式加熱炉の内部で
屈曲成形することができる。 The above-described carts 9 are continuously supplied into the continuous heating furnace 1, and the carts 9 form a line and pass through the continuous heating furnace 1 intermittently. Therefore, when the glass plate a is placed on the upper surface of each carriage 9 at the entrance 2, the glass plate a can be continuously bent and formed inside the continuous heating furnace.
以上本発明の方法及び装置を図面の実施例に付
いて説明したが、本発明は上記した実施例に限定
されるものではなく、特許請求の範囲に記載した
構成を変更しない限り、どの様にでも実施するこ
とができる。例えば、ガラス板は台車の型枠の構
造によりどのような形状にでも屈曲することがで
きるし、係止機構１７を他の構造にしたり、場合
によつては必要ないこともある。 Although the method and apparatus of the present invention have been described above with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments described above, and can be modified in any way without changing the structure described in the claims. However, it can be implemented. For example, the glass plate can be bent into any shape depending on the structure of the formwork of the truck, and the locking mechanism 17 may have a different structure or may not be necessary in some cases.
＜発明の効果＞
以上要するに本発明によれば連続式加熱炉の内
部にガラス板を通過させ、加熱ゾーンで補助ヒー
タによりガラス板を局部的に加熱して軟化状態に
し、局部的加熱部分より外側のガラス板の自重で
局部的加熱部分を屈曲し、屈曲したガラス板の側
部を押圧するようにしたので、連続式加熱炉であ
つても連続的にガラス板を屈曲することができ、
しかも屈曲形状が押圧機構により極めて高精度に
なるばかりでなく、側部が揺動したりずれること
がないので、屈曲状態が変化することがない。<Effects of the Invention> In summary, according to the present invention, a glass plate is passed through a continuous heating furnace, the glass plate is locally heated by an auxiliary heater in the heating zone to soften it, and the glass plate is heated outside the locally heated portion. The locally heated part is bent by the weight of the glass plate, and the sides of the bent glass plate are pressed, so even in a continuous heating furnace, the glass plate can be bent continuously.
Moreover, not only is the bending shape extremely accurate due to the pressing mechanism, but the side portions do not swing or shift, so the bending state does not change.
しかも、補助ヒーターの位置を調節機構で上
下、左右に変更することにより台車の型枠の形状
に基づき多種の状態に屈曲することができるの
で、観賞魚や養魚用の水槽、人形用ケース、建築
物の出窓等広い範囲の用途に使用することができ
る。 Moreover, by changing the position of the auxiliary heater vertically, horizontally, and horizontally using the adjustment mechanism, it can be bent into various states based on the shape of the formwork of the trolley, so it can be used in aquariums for ornamental fish and fish farming, cases for dolls, and buildings. It can be used for a wide range of applications such as bay windows.
図面は本発明の一実施例を示すもので、第１図
は装置全体の概略正面図、第２図は同上の平面
図、第３図は第２図−線の断面図、第４図は
第２図−線の断面図、第５図は台車の斜視
図、第６図は台車と押圧機構との関係を示す一部
の縦断面図、第７図は押圧機構の先端の拡大斜視
図、第８図は位置設定機構の概略正面図、第９図
は屈曲したガラス板の斜視図である。
１は連続式加熱炉、４は加熱ゾーン、５は徐冷
ゾーン、９は台車、２３は補助ヒータ、２６，２
７は調節機構、２９は押圧機構、ａはガラス板。
The drawings show one embodiment of the present invention; FIG. 1 is a schematic front view of the entire device, FIG. 2 is a plan view of the same, FIG. 3 is a sectional view taken along the line of FIG. Figure 2 is a cross-sectional view along the line, Figure 5 is a perspective view of the truck, Figure 6 is a partial vertical sectional view showing the relationship between the truck and the pressing mechanism, and Figure 7 is an enlarged perspective view of the tip of the pressing mechanism. , FIG. 8 is a schematic front view of the position setting mechanism, and FIG. 9 is a perspective view of the bent glass plate. 1 is a continuous heating furnace, 4 is a heating zone, 5 is a slow cooling zone, 9 is a trolley, 23 is an auxiliary heater, 26, 2
7 is an adjustment mechanism, 29 is a pressing mechanism, and a is a glass plate.
Claims (1)
熱炉の内部にガラス板を通過させ、加熱ゾーンで
は補助ヒータによりガラス板の一部を局部的に加
熱して軟化状態にし、加熱された局部的加熱部分
より外側のガラス板の側部の自重により局部的加
熱部分を屈曲するとともに、屈曲された側部の端
縁部分を加熱ゾーンの最終セクシヨンにおいて外
側から押圧する様にしたことを特徴とするガラス
板の屈曲方法。 ２ 加熱ゾーンと徐冷ゾーンとを有して加熱ゾー
ン部分に、上下及び左右の位置を調節機構により
変更可能にした補助ヒータを長さ方向に設置する
とともに、加熱ゾーンの最終セクシヨンにおいて
屈曲するガラス板の側部を外側から押圧する押圧
機構を設けた連続式加熱炉と、上記連続式加熱炉
の内部を通過して上面にガラス板を載置する台車
とを有し、上記補助ヒータによりガラス板の一部
を局部的に加熱して軟化させ、加熱された局部的
加熱部分より外側のガラス板の側部の自重で局部
的加熱部分を屈曲し、屈曲したガラス板の側部を
加熱ゾーンの最終セクシヨンにおいて押圧機構に
より押圧するようにしたことを特徴とするガラス
板の屈曲装置。[Claims] 1. A glass plate is passed through a continuous heating furnace having a heating zone and a slow cooling zone, and in the heating zone, a part of the glass plate is locally heated by an auxiliary heater to soften it. , so that the locally heated portion is bent by its own weight on the side of the glass plate outside the heated locally heated portion, and the edge portion of the bent side portion is pressed from the outside in the final section of the heating zone. A method of bending a glass plate characterized by the following. 2 Having a heating zone and a slow cooling zone, in the heating zone part, an auxiliary heater whose vertical and horizontal positions can be changed by an adjustment mechanism is installed in the length direction, and a glass is bent at the final section of the heating zone. It has a continuous heating furnace equipped with a pressing mechanism that presses the side of the plate from the outside, and a cart that passes through the inside of the continuous heating furnace and places the glass plate on the top surface. A part of the plate is locally heated to soften it, and the locally heated part is bent by the weight of the side of the glass plate outside the heated locally heated part, and the bent side of the glass plate is turned into a heating zone. A device for bending a glass plate, characterized in that the final section of the glass plate is pressed by a pressing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16202186A JPS6321229A (en) | 1986-07-11 | 1986-07-11 | Method and device for bending glass sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16202186A JPS6321229A (en) | 1986-07-11 | 1986-07-11 | Method and device for bending glass sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6321229A JPS6321229A (en) | 1988-01-28 |
| JPH048378B2 true JPH048378B2 (en) | 1992-02-14 |
Family
ID=15746555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16202186A Granted JPS6321229A (en) | 1986-07-11 | 1986-07-11 | Method and device for bending glass sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6321229A (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL1678091T3 (en) * | 2003-10-28 | 2012-02-29 | Schott Ag | Method for the production of a molded glass part comprising at least one bent portion |
| DE102006035555A1 (en) * | 2006-07-27 | 2008-01-31 | Eliog-Kelvitherm Industrieofenbau Gmbh | Arrangement and method for the deformation of glass panes |
| MX2010012356A (en) | 2008-05-12 | 2011-08-03 | Univ Arizona State | Photovoltaic generator with a spherical imaging lens for use with a paraboloidal solar reflector. |
| DE102010036999B4 (en) * | 2010-08-16 | 2016-07-28 | Schott Ag | Process for producing a bent glass or glass ceramic molding |
| EP2457881B1 (en) * | 2010-11-30 | 2019-05-08 | Corning Incorporated | Method and apparatus for bending a sheet of material into a shaped article |
| US8397540B2 (en) * | 2011-05-05 | 2013-03-19 | Corning Incorporated | Methods and apparatus for reforming a glass sheet |
| CN103874664A (en) * | 2011-10-10 | 2014-06-18 | 康宁股份有限公司 | Reshaping thin glass sheets |
| WO2013055587A1 (en) * | 2011-10-10 | 2013-04-18 | Corning Incorporated | Apparatus and method for tight bending thin glass sheets |
| CN104203847B (en) * | 2011-10-13 | 2017-09-22 | 康宁股份有限公司 | Thermomechanical reshaping method and system and mechanical reshaping instrument |
| US8833106B2 (en) * | 2012-09-18 | 2014-09-16 | Corning Incorporated | Thermo-mechanical reforming method and system and mechanical reforming tool |
| US8549885B2 (en) * | 2011-11-23 | 2013-10-08 | Corning Incorporated | Process and system for precision glass sheet bending |
| US9611165B2 (en) * | 2012-06-08 | 2017-04-04 | Corning Incorporated | Method and apparatus for bending a glass sheet and an electronic device casing |
| EP2679551A1 (en) * | 2012-06-28 | 2014-01-01 | Corning Incorporated | Process and system for fine tuning precision glass sheet bending |
| JP5472521B1 (en) | 2012-10-10 | 2014-04-16 | 日本電気硝子株式会社 | Manufacturing method of cover glass for mobile display |
| JP2014139122A (en) * | 2012-11-07 | 2014-07-31 | Nippon Electric Glass Co Ltd | Method and device for manufacturing cover glass for display |
| US10050583B2 (en) | 2012-11-30 | 2018-08-14 | Arizona Board Of Regents On Behalf Of University Of Arizona | Solar generator with large reflector dishes and concentrator photovoltaic cells in flat arrays |
| JP5510693B1 (en) * | 2012-12-07 | 2014-06-04 | 日本電気硝子株式会社 | Method for producing tempered glass plate having bent portion and tempered glass plate having bent portion |
| WO2015061323A1 (en) | 2013-10-22 | 2015-04-30 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Octohedral frame and tripod for rotating equipment |
| DE102014110920C5 (en) * | 2014-07-31 | 2023-08-03 | Schott Ag | Shaped glass article with predetermined geometry |
| US10505059B2 (en) | 2015-01-16 | 2019-12-10 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Micro-scale concentrated photovoltaic module |
| WO2016141041A1 (en) | 2015-03-02 | 2016-09-09 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Glass forming mold of adjustable shape |
| WO2016200988A1 (en) | 2015-06-12 | 2016-12-15 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Tandem photovoltaic module with diffractive spectral separation |
| WO2017024038A1 (en) | 2015-08-03 | 2017-02-09 | The Arizona Board Of Regents On Behalf Of The University Of Arizona | Solar concentrator for a tower-mounted central receiver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59162142A (en) * | 1983-03-02 | 1984-09-13 | Nippon Sheet Glass Co Ltd | Apparatus for partial heating of glass plate |
-
1986
- 1986-07-11 JP JP16202186A patent/JPS6321229A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59162142A (en) * | 1983-03-02 | 1984-09-13 | Nippon Sheet Glass Co Ltd | Apparatus for partial heating of glass plate |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6321229A (en) | 1988-01-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH048378B2 (en) | ||
| JP4167432B2 (en) | Glass panel bending equipment | |
| JPH05116972A (en) | Furnace for bending glass plate and process for manufacturing s-shaped window glass | |
| US20030230116A1 (en) | Apparatus for bending and tempering glass panels | |
| JPS6132264B2 (en) | ||
| JPS6245176B2 (en) | ||
| JPS6124338B2 (en) | ||
| JPS62241838A (en) | Method of heating thin plate glass and heating device | |
| JP2004018372A (en) | Apparatus for bending glass panel | |
| JP3190674B2 (en) | Glass sheet forming method and apparatus | |
| JPH0441148Y2 (en) | ||
| JPH02307833A (en) | Heating of plate glass for laminated glass | |
| JP2001089172A (en) | Flexural molding apparatus for glass plate | |
| US2526359A (en) | Apparatus for bending glass sheets | |
| KR900002524B1 (en) | Apparatus and method for locally heating conveyed glass sheets | |
| FR2638155A1 (en) | METHOD AND DEVICE FOR BENDING AND RECOVERING SHEETS OF LAMINATED GLASS | |
| JPH02204935A (en) | Method and device for manufacturing fluorescent lamp | |
| GB1016950A (en) | Improvements in and relating to methods and apparatus for bending and annealing glass sheets | |
| US3123344A (en) | Glass bending furnaces | |
| KR20060024441A (en) | Apparatus for bending glass panels | |
| US3068672A (en) | Apparatus for bending sheet glass | |
| JP2002332520A (en) | Sheet manufacturing device | |
| JP3932542B2 (en) | Opening and closing door of heat treatment furnace | |
| JPH0651249U (en) | Glass plate bending device | |
| JPS6347838Y2 (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |