JPH0637698B2 - Aluminum profile processing equipment - Google Patents
Aluminum profile processing equipmentInfo
- Publication number
- JPH0637698B2 JPH0637698B2 JP33188587A JP33188587A JPH0637698B2 JP H0637698 B2 JPH0637698 B2 JP H0637698B2 JP 33188587 A JP33188587 A JP 33188587A JP 33188587 A JP33188587 A JP 33188587A JP H0637698 B2 JPH0637698 B2 JP H0637698B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- conveyor
- feed conveyor
- vertical feed
- heat treatment
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 9
- 229910052782 aluminium Inorganic materials 0.000 title claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 20
- 238000005520 cutting process Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Description
【発明の詳細な説明】 〔発明の目的〕 (産業上の利用分野) 本発明は、押出し機より押出し成形されたアルミニウム
形材を、押出し後のストレッチ、切断及び焼戻しなどを
行う処理装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a processing apparatus for performing stretching, cutting and tempering after extrusion of an aluminum profile extruded from an extruder.
(従来の技術) この種の装置として、例えば特開昭60−174860号公報に
記載したものが知られている。当該公報の技術は、押出
し成形された長尺形材を単位長さに切断した後、その各
単位形材を後工程の酸化皮膜処理時に必要な並べ方に並
べ、その状態を保持して熱処理を行い、且つ、熱処理時
の省エネルギー化を促進できることを目的として開発し
たものである。(Prior Art) As this type of device, for example, one described in Japanese Patent Laid-Open No. 174860/1985 is known. The technique of the publication is that after cutting the extruded long shaped members into unit lengths, the unit shaped members are arranged in a necessary arrangement at the time of the oxide film treatment in the subsequent step, and the heat treatment is performed while maintaining the state. It was developed for the purpose of promoting energy saving during heat treatment.
その構成は、切断した単位形材をコンベア上に前述の如
く並べて載置し、炉の入口前に有する搬送コンベアに所
要本数の単位形材を炉の長手方向に対し平面的に直交す
る状態に貯留した後、所要本数の単位形材を炉内に設け
たチェーンコンベアに載せ、炉の出口側に向かって送
り、熱処理した後に排出コンベアに移し替えて次期工程
に搬送するように構成してある。The configuration is such that the cut unit profiles are placed side by side on the conveyor as described above, and the required number of unit profiles are placed in a plane orthogonal to the longitudinal direction of the furnace on the transport conveyor in front of the furnace inlet. After storing, the required number of unit shapes are placed on the chain conveyor installed in the furnace, sent to the exit side of the furnace, heat-treated, transferred to the discharge conveyor, and transferred to the next process. .
(発明が解決しようとする問題点) ところで、前述の技術によると、押出された長尺の形材
を単位長さに切断し、切断した形材はその長さ方向を変
更すること無く炉に向かって送られるものであるから、
炉を押出し機による押出し方向に対して直交して設置す
る必要がある。この装置の場合には広い工場であれば問
題がないが、しかし押出し後の処理のために広い面積を
専有することになり、工場面積に対する生産率が低くな
る問題があった。(Problems to be Solved by the Invention) By the way, according to the above-mentioned technology, the extruded long profile is cut into a unit length, and the cut profile is put into the furnace without changing its length direction. Because it is sent to
The furnace must be installed orthogonally to the extrusion direction of the extruder. In the case of this apparatus, there is no problem in a large factory, but there is a problem that the production rate is low with respect to the factory area because it occupies a large area for processing after extrusion.
本発明は以上の問題点から工場面積に対する生産率が向
上され、しかも炉に消費するエネルギーを大巾に節減し
得る処理装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems and provides a processing apparatus in which the production rate with respect to a factory area is improved and the energy consumed in the furnace can be significantly reduced.
(問題点を解決するための手段) 本発明によるアルミニウム形材の処理装置は、押出し機
のランアウトテーブル、ストレージテーブル、ソーテー
ブルの各テーブルを順次隣り合って互いに平行に配し、
ソーテーブルの横にその長手方向と平行して熱処理炉を
設置し、該炉の入口側と出口側にリフトテーブルとガイ
ドテーブルとを炉の長手方向に沿って列設し、前記ソー
テーブルの切断機より延長するストックテーブルと炉の
入口側のガイドテーブル間に横送りコンベアを介在し、
更に熱処理炉内には単位形材をその長手方向が炉の長手
方向と平行して送り得る縦送りコンベアを上下に複数段
備え、且つ各段の縦送りコンベアに形材の送り方向と交
差する横方向より熱風を噴き出す噴出口を設けたもので
ある。(Means for Solving the Problems) In the aluminum profile processing apparatus according to the present invention, the run-out table, the storage table, and the saw table of the extruder are sequentially arranged next to each other in parallel,
A heat treatment furnace is installed beside the saw table in parallel with the longitudinal direction of the saw table, and a lift table and a guide table are arranged at the inlet side and the outlet side of the furnace along the longitudinal direction of the furnace, and the saw table is cut. A horizontal feed conveyor is interposed between the stock table extending from the machine and the guide table on the inlet side of the furnace.
Further, in the heat treatment furnace, a plurality of vertical feed conveyors capable of feeding the unit shape members in the longitudinal direction parallel to the lengthwise direction of the furnace are provided in the upper and lower stages, and the vertical feed conveyor of each stage intersects the feed direction of the shape members. It is provided with an ejection port for ejecting hot air from the lateral direction.
(実施例) 本発明は下記する実施例によって具体化されるもので、
第1図に示している如く、押出し機1の前方にランアウ
トテーブル2を有し、その横に平行して第1クーリング
テーブル3を介して矯正機4のストレージテーブル5を
設け、更にその横に平行して第2クーリングテーブル6
を介して切断機7のソーテーブル8を備える。この配置
に対して、ソーテーブル8の横隣りにその長手方向に沿
って長い焼戻しを行う熱処理炉10を設置し、更にソーテ
ーブル8に切断機7を介して延設したストックテーブル
9の横隣りで炉10の延長線上に送入ガイドテーブル11を
設け、ストックテーブル9と送入ガイドテーブル11間に
横送りコンベア12を介在し、送入ガイドテーブル11と炉
10の入口との間に送入リフトテーブル13が設けてあり、
また炉10の出口側には排出リフトテーブル14と送出ガイ
ドテーブル15とを列設している。(Example) The present invention is embodied by the following examples,
As shown in FIG. 1, a run-out table 2 is provided in front of the extruder 1, and a storage table 5 of a straightener 4 is provided in parallel to the run-out table 2 via a first cooling table 3 and further to the side thereof. Second cooling table 6 in parallel
The saw table 8 of the cutting machine 7 is provided. With respect to this arrangement, a heat treatment furnace 10 for performing long tempering along the longitudinal direction is installed next to the saw table 8 and next to the stock table 9 extended to the saw table 8 through a cutting machine 7. The feed guide table 11 is provided on the extension line of the furnace 10, and the transverse feed conveyor 12 is interposed between the stock table 9 and the feed guide table 11, and the feed guide table 11 and the furnace are provided.
An inflow lift table 13 is provided between the 10 entrances,
Further, a discharge lift table 14 and a delivery guide table 15 are arranged side by side on the outlet side of the furnace 10.
前記送入、送出ガイドテーブル11,15はベルトコンベア
で形成してある。送入、排出リフトテーブル13,14は第
2図に示す如く、ローラーコンベアをパントグラフ機構
で上下動可能に形成したものである。The feeding / delivery guide tables 11 and 15 are formed by belt conveyors. As shown in FIG. 2, the feeding / discharging lift tables 13 and 14 are roller conveyors formed by a pantograph mechanism so as to be vertically movable.
更に熱処理炉10は第2図と第3図に示しているように、
入口と出口にそれぞれ上下に開閉する扉16,17を有し、
炉10内には、前記切断機7で所定寸法に切られた単位形
材の長さとほぼ同様の長さを持つ縦送りコンベア18を、
具体的にはローラーコンベアを炉10の長手方向に複数基
同一平面に沿って列設すると共に、列設した縦送りコン
ベア18を上下に間隔を保って複数段に亘って設けてあ
る。更に第3図図示の如く、炉10の一側壁上部にバーナ
ー口19を有し、炉10内に長手方向に列設する各縦送りコ
ンベア18ごとに、隔壁20を前記とは反対の側壁と間隔を
保って起立し、続いて最上段の縦送りコンベア18より上
部の一部を囲む状態に設け、隔壁20の上面に熱風を下方
に送る送風機21を取付け、隔壁20の起立部に各段の縦送
りコンベア18と対向して噴出口22を設け、噴出口22より
噴き出した熱風は送風機21によって上下方向に循環する
ようになっている。Further, the heat treatment furnace 10 is, as shown in FIGS. 2 and 3,
It has doors 16 and 17 that open and close vertically at the entrance and exit,
In the furnace 10, a vertical feed conveyor 18 having a length substantially the same as the length of the unit profile cut into a predetermined size by the cutting machine 7,
Specifically, a plurality of roller conveyors are arranged in a row in the longitudinal direction of the furnace 10 along the same plane, and the vertical feed conveyors 18 arranged in a row are provided in a plurality of stages with vertical intervals. Further, as shown in FIG. 3, a burner port 19 is provided on an upper part of one side wall of the furnace 10, and a partition wall 20 is provided on each side of the vertical feed conveyors 18 arranged in the furnace 10 in the longitudinal direction. Standing up at intervals, then provided in a state of surrounding a part of the upper part of the vertical feed conveyor 18 at the uppermost stage, a blower 21 for sending hot air downward is attached to the upper surface of the partition wall 20, and each stage at the rising portion of the partition wall 20. A jet port 22 is provided so as to face the vertical feed conveyor 18, and the hot air blown from the jet port 22 is circulated in the vertical direction by the blower 21.
また、第1図に示すように、押出し機1、矯正機4、各
テーブル2,3,5,6,8,9,11,13,14、切断機
7、並びに横送りコンベア12は、熱処理炉10をはさんで
対称に配置されているため、一組の押出し機1,1で成
形された各形材は一つの熱処理炉10で処理できるように
なっている。Further, as shown in FIG. 1, the extruder 1, the straightener 4, the tables 2, 3, 5, 6, 8, 9, 11, 13, 14, the cutting machine 7, and the transverse feed conveyor 12 are heat-treated. Since the furnaces 10 are arranged symmetrically with respect to each other, each of the profiles formed by the pair of extruders 1 and 1 can be processed in one heat treatment furnace 10.
上記熱処理炉10内の縦送りコンベア18はローラーコンベ
アであるが、これに限ることがなく、第5図から第8図
に示すようにチェーンコンベアによるか、あるいは第9
図図示の如くベルトコンベアであっても良く、チェーン
コンベアによる場合、その担架部材23の表面に耐熱フェ
ルト材などのクッション材24が張り付けるか、または第
8図のように、耐熱合成樹脂製で中空体を成すクッショ
ン材24を設けることが好ましい。またベルトコンベアの
場合には、ローラ25の外周にピン26を等間隔に突設し、
ベルト27に透孔28を明けたスリップ防止手段を設けてお
く。更に何れのコンベアにも中間支持部材29が介在して
ある。The vertical feed conveyor 18 in the heat treatment furnace 10 is a roller conveyor, but is not limited to this, and may be a chain conveyor as shown in FIG. 5 to FIG.
A belt conveyor may be used as shown in the figure, and in the case of a chain conveyor, a cushion material 24 such as a heat-resistant felt material is attached to the surface of the stretcher member 23, or is made of a heat-resistant synthetic resin as shown in FIG. It is preferable to provide a cushion material 24 forming a hollow body. Further, in the case of a belt conveyor, pins 26 are provided on the outer periphery of the roller 25 at equal intervals,
The belt 27 is provided with a slip prevention means having a through hole 28. Further, an intermediate support member 29 is provided on each of the conveyors.
本発明は上記構造であって、押出し成形された形材の動
きを第4図によって説明すると、押出された長尺形材A
をストレージテーブル5上でソーテーブル8により長尺
形材Aを押出し方向と逆方向に移送しながら矯正し、切
断機7で単位長さに順次切断し、その単位形材Bを横へ
平行移動した後、押出し方向と同方向に向かって送り、
炉10内へ挿入した後も順次出口側へ向かって送り、所定
温度で所定時間熱処理を施してから、炉10外へ排出する
もので、実際には複数本の単位形材を一単位として各段
の縦送りコンベア18に投入されるものである。The present invention has the above structure, and the movement of the extruded profile will be described with reference to FIG.
Is corrected on the storage table 5 while transferring the long shaped material A by the saw table 8 in the direction opposite to the extruding direction, the cutting machine 7 sequentially cuts it to a unit length, and the unit shaped material B is moved in parallel laterally. After that, send in the same direction as the extrusion direction,
After being inserted into the furnace 10, it is sequentially sent to the outlet side, subjected to heat treatment at a predetermined temperature for a predetermined time, and then discharged to the outside of the furnace 10. Actually, a plurality of unit shape members are treated as one unit. It is put in the vertical feed conveyor 18 in stages.
本発明によるアルミニウム形材の処理装置によれば、熱
処理炉をソーテーブルの横にその長手方向に沿って設置
するもので、押出し技術の発達に伴ない、一回の押出す
長さが60〜70mと非常に長くなり、工場の設置もこれに
対応されているので、既製の工場に対しても熱処理炉を
所要の長さで設置することが出来るものである。しか
も、切断された単位形材をストックテーブルよりガイド
テーブルに平行移動によって移し替えられ、そのまま長
手方向に移動して熱処理炉に投入されるため、単位形材
の方法を替える必要がなく、狭い範囲で処理することが
出来、面積当たりの生産率を大巾に向上し得るものであ
る。更に熱処理炉内に縦送りコンベアを設け、該コンベ
アで単位形材を移送しつつ熱処理を施し、処理後は単位
形材のみ炉外へ排出するものあるから、消費する熱エネ
ルギーを大巾に減少することが出来るものである。According to the apparatus for processing an aluminum profile according to the present invention, the heat treatment furnace is installed beside the saw table along the longitudinal direction thereof. The length is very long, 70 m, and the factory is set up to accommodate this, so it is possible to install a heat treatment furnace in the required length even in a ready-made factory. Moreover, since the cut unit profiles are transferred from the stock table to the guide table by parallel movement, and then moved in the longitudinal direction as they are and put into the heat treatment furnace, there is no need to change the method of the unit profiles, and a narrow range is possible. It is possible to greatly improve the production rate per unit area. Furthermore, a vertical feed conveyor is provided in the heat treatment furnace, and heat treatment is performed while transferring the unit profile on the conveyor, and after processing, only the unit profile is discharged outside the furnace, so the heat energy consumed is greatly reduced. It is something you can do.
図面は本発明によるアルミニウム形材の処理装置を示
し、第1図は概要を示す平面図、第2図は熱処理炉を示
す縦断面図、第3図は同じく拡大横断面図、第4図は形
材の移動を示す平面図、第5図はチェーンコンベアを備
える熱処理炉の一部を示す横断面図、第6図はチェーン
コンベアの一部を示す斜視図、第7図は同じく側面図、
第8図は担架部材の変形例を示す斜視図、第9図はベル
トコンベアの一部を示す斜視図である。 1……押出し機、2……ランアウトテーブル、4……矯
正機、5……ストレージテーブル、7……切断機、8…
…ソーテーブル、9……ストックテーブル、10……熱処
理炉、11……ガイドテーブル、12……横送りコンベア、
13,14……リフトテーブル、18……縦送りコンベア、22
……噴出口The drawings show an apparatus for processing aluminum profiles according to the present invention. Fig. 1 is a plan view showing an outline, Fig. 2 is a longitudinal sectional view showing a heat treatment furnace, Fig. 3 is an enlarged transverse sectional view of the same, and Fig. 4 is FIG. 5 is a plan view showing the movement of the shape members, FIG. 5 is a cross-sectional view showing a part of a heat treatment furnace equipped with a chain conveyor, FIG. 6 is a perspective view showing a part of the chain conveyor, and FIG.
FIG. 8 is a perspective view showing a modification of the stretcher member, and FIG. 9 is a perspective view showing a part of the belt conveyor. 1 ... Extruder, 2 ... Runout table, 4 ... Straightening machine, 5 ... Storage table, 7 ... Cutting machine, 8 ...
… Saw table, 9 …… Stock table, 10 …… Heat treatment furnace, 11 …… Guide table, 12 …… Transverse conveyor,
13, 14 …… Lift table, 18 …… Vertical feed conveyor, 22
...... Spout
Claims (4)
平行して、ストレージテーブル5と長尺形材を単位長さ
に切断するソーテーブル8とを順次設け、ソーテーブル
8の横にその長手方向に沿って熱処理炉10を設置し、熱
処理炉10の入口側と出口側にそれぞれリフトテーブル1
3,14とガイドテーブル11,15を炉の長手方向に沿って
列設し、ソーテーブル8の切断機7より延長するストッ
クテーブル9と前記炉の入口側ガイドテーブル13間に、
切断した単位形材を平行移送する横送りコンベア12を介
在し、前記熱処理炉10内には複数段上下に配した縦送り
コンベア18を備え、各段の縦送りコンベア18ごとに形材
の送り方向に対する横方向より熱風を噴き出す噴出口22
を設けていることを特徴とするアルミニウム形材の処理
装置。1. A storage table 5 and a saw table 8 for cutting a long shaped material into unit lengths are sequentially provided in parallel with the runout table 2 of the extruder 1 and the length thereof is provided next to the saw table 8. The heat treatment furnace 10 is installed along the direction, and the lift table 1 is installed on the inlet side and the outlet side of the heat treatment furnace 10, respectively.
3, 14 and guide tables 11, 15 are arranged along the longitudinal direction of the furnace, and between the stock table 9 extending from the cutting machine 7 of the saw table 8 and the inlet side guide table 13 of the furnace,
A horizontal feed conveyor 12 for transferring the cut unit shape members in parallel is interposed, and in the heat treatment furnace 10, a vertical feed conveyor 18 arranged in a plurality of stages up and down is provided, and the shape members are fed for each vertical feed conveyor 18 in each stage. Jet port 22 that blows out hot air from the lateral direction
An apparatus for processing aluminum profiles, characterized by being provided with.
アで形成してある特許請求の範囲第1項に記載のアルミ
ニウム形材の処理装置。2. The apparatus for processing an aluminum profile according to claim 1, wherein the vertical feed conveyor 18 is a roller conveyor.
アで形成してある特許請求の範囲第1項に記載のアルミ
ニウム形材の処理装置。3. The apparatus for processing an aluminum profile according to claim 1, wherein the vertical feed conveyor 18 is a chain conveyor.
で形成してある特許請求の範囲第1項に記載のアルミニ
ウム形材の処理装置。4. The apparatus for processing an aluminum profile according to claim 1, wherein the vertical feed conveyor 18 is a belt conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33188587A JPH0637698B2 (en) | 1987-03-19 | 1987-12-28 | Aluminum profile processing equipment |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-40677 | 1987-03-19 | ||
| JP4067787 | 1987-03-19 | ||
| JP33188587A JPH0637698B2 (en) | 1987-03-19 | 1987-12-28 | Aluminum profile processing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6425958A JPS6425958A (en) | 1989-01-27 |
| JPH0637698B2 true JPH0637698B2 (en) | 1994-05-18 |
Family
ID=26380176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33188587A Expired - Lifetime JPH0637698B2 (en) | 1987-03-19 | 1987-12-28 | Aluminum profile processing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0637698B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627881A (en) * | 2013-06-17 | 2014-03-12 | 芜湖长启炉业有限公司 | Trolley-furnace door integrated thermal treatment furnace for aluminum alloy materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITBS20040009A1 (en) * | 2004-01-22 | 2004-04-22 | Cometal Engineering S P A | PLANT FOR THE PRODUCTION OF EXTRUDED ALUMINUM PROFILES |
-
1987
- 1987-12-28 JP JP33188587A patent/JPH0637698B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103627881A (en) * | 2013-06-17 | 2014-03-12 | 芜湖长启炉业有限公司 | Trolley-furnace door integrated thermal treatment furnace for aluminum alloy materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6425958A (en) | 1989-01-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7665331B2 (en) | Method and machine for the production of convex glass sheets | |
| SE434390B (en) | HARD GLASS DISC INTENDED TO BE USED AS A SIDE OR BACKGROUND FOR MOTOR VEHICLES AND PROCEDURES FOR ITS PREPARATION | |
| FI90760B (en) | Apparatus and method for tempering glass sheets | |
| RU2083512C1 (en) | Apparatus for shaping and tempering glass sheets | |
| JPH042421B2 (en) | ||
| US3198499A (en) | Method and apparatus for supporting and heat treating | |
| JP7593754B2 (en) | Blower and stretching device equipped with blower | |
| HU213858B (en) | Method and apparatus for matufacturing a bent glass sheet | |
| JP5259955B2 (en) | Strengthening of bent glass plate | |
| US4368024A (en) | Forming machines | |
| JP2007002336A (en) | Furnace system for heating long aluminum billet | |
| JP2007002336A6 (en) | Furnace system for heating long aluminum billets | |
| JPH0637698B2 (en) | Aluminum profile processing equipment | |
| US3324507A (en) | Apparatus for manufacturing hollow articles | |
| KR102129170B1 (en) | surface treatment apparatus for injection mold product using hot air | |
| EP0523017B1 (en) | Apparatus and process for the manufacture of sheets of glass having a complex shape | |
| KR102498365B1 (en) | Aluminum alloy and manufacturing method thereof | |
| CN111499179A (en) | Glass tubule cutting equipment and glass tubule cutting method | |
| US4983201A (en) | Method and apparatus in a glass sheet bending furnace for preventing the deflection of mould wagon bearing rails | |
| CN212707963U (en) | Bottle blowing machine bottleneck cooling structure | |
| CN212640296U (en) | Glass tubule cutting equipment | |
| CN113614040B (en) | Glass handling system with variable bending station | |
| JPH0521976B2 (en) | ||
| JPH06191867A (en) | Apparatus for production of bent sheet glass | |
| IT8367093A1 (en) | APPARATUS AND PROCEDURE FOR TEMPERING GLASS PLATES |