JPS6330366B2 - - Google Patents
Info
- Publication number
- JPS6330366B2 JPS6330366B2 JP56092888A JP9288881A JPS6330366B2 JP S6330366 B2 JPS6330366 B2 JP S6330366B2 JP 56092888 A JP56092888 A JP 56092888A JP 9288881 A JP9288881 A JP 9288881A JP S6330366 B2 JPS6330366 B2 JP S6330366B2
- Authority
- JP
- Japan
- Prior art keywords
- heated
- furnace
- conveyance
- rollers
- conveying
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 17
- 230000003028 elevating effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 4
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
Description
【発明の詳細な説明】
この発明は棒材、管材等の長尺の被熱物を焼鈍
するローラハース式熱処理炉に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roller hearth type heat treatment furnace for annealing long objects to be heated, such as rods and tubes.
従来、棒材又は管材等の長尺材を熱処理するに
際しては、その長尺被熱物をラツク又はトレイ上
に積載しこれを搬送用ローラに乗せて炉内に搬入
するのが一般的であつた。即ち、ローラハース式
熱処理炉の場合、従来から炉内の搬送用ローラの
両端部に鍔状部が一体に設けられ被熱物が横へ脱
落するのをこの鍔状部によつて防いでいるが、被
熱物を搬送用ローラ上に直に乗せて搬送させると
その鍔状部によつて被熱物にスリ疵を付けたりな
おも脱落のおそれがあつたので普通一般にはラツ
ク又はトレイを使用し被熱物をこれに乗せて炉内
に搬入するようにしていた。しかしそうするとこ
のトレイ等を被熱物と同時に加熱することとなる
ので加熱に必要な熱エネルギーコストが高くなる
という欠点があつた。 Conventionally, when heat treating long materials such as rods or tube materials, it has been common practice to load the long objects to be heated on racks or trays, place them on conveyor rollers, and transport them into the furnace. Ta. That is, in the case of a roller hearth type heat treatment furnace, a flange-like part is conventionally provided integrally at both ends of the conveying roller in the furnace, and this flange-like part prevents the object to be heated from falling off to the side. If the object to be heated is placed directly on the conveyor roller and conveyed, there is a risk that the object will be scratched or fall off due to the brim, so a rack or a tray is usually used. The object to be heated was placed on this and carried into the furnace. However, this has the disadvantage that the tray and the like are heated at the same time as the object to be heated, which increases the cost of the thermal energy required for heating.
また、従来のローラーハース式炉は、搬送用ロ
ーラを常時正逆回転させて被熱物を炉内にて往復
動させ（オシレーシヨンと称される。）ることに
より該搬送用ローラの熱変形を防いでいるが、そ
の場合には被熱物が往復動するスペースを炉内に
要するので長い炉長のものが必要になると共に、
長時間のオシレーシヨンにより被熱物にスリ疵を
発生させるという欠点があつた。 In addition, conventional roller hearth furnaces prevent thermal deformation of the conveying rollers by constantly rotating the conveying rollers in forward and reverse directions to cause the object to be heated to reciprocate within the furnace (referred to as oscillation). However, in that case, space is required in the furnace for the objects to be heated to move back and forth, so a long furnace length is required, and
The drawback was that long-term oscillation caused scratches on the heated object.
この発明は上記欠点を解消せんとするもので、
炉床にモータによつて定方向に回転駆動される複
数本の搬送用ローラを水平に配列し、該搬送用ロ
ーラ上に長尺被熱物を乗せて炉長方向へ移動させ
るようにしたものであつて、該搬送用ローラの間
隔に支持部材を設け、該支持部材の両端部に回転
自在なガードロールを設けて該ガードロールを常
に搬送用ローラの搬送面より上方に突出させると
共に、該支持部材の支持面を搬送用ローラの搬送
面より出没させる昇降手段を設けてなることを特
徴としたローラハース式熱処理炉である。 This invention aims to solve the above-mentioned drawbacks.
A furnace in which a plurality of conveyance rollers driven to rotate in a fixed direction by a motor are arranged horizontally on the hearth, and a long object to be heated is placed on the conveyance rollers and moved in the longitudinal direction of the furnace. A supporting member is provided at intervals between the conveying rollers, and rotatable guard rolls are provided at both ends of the supporting member so that the guard rolls always protrude above the conveying surface of the conveying rollers. This is a roller hearth type heat treatment furnace characterized by being provided with an elevating means for moving the support surface of the support member into and out of the conveyance surface of the conveyance roller.
以下にこの発明の一実施例を図面と共に説明す
る。第１図はこの設備全体の平面図で、同図中１
は装入用ローラ２，２………が多数並列配置され
た装入テーブル、３は熱処理炉、４はその入口
扉、５はその熱処理炉に後続する冷却室、６は抽
出テーブルである。熱処理炉３の炉床は複数本の
搬送用ローラ７，７………が定間隔に配列され、
該各搬送用ローラ７，７………の一端の炉外突出
部にはスプロケツトが固着されモータ（図示せ
ず）にチエン伝導されていて該モータの駆動によ
り各搬送用ローラ７，７………は定方向に回転駆
動されるため前記装入テーブル１上にあつた長尺
被熱物は該搬送用ローラ７，７………に支持させ
て炉長方向に移動させ炉内に搬入することができ
る。なおここまでの構成は従来のローラハース炉
と変わりない。しかして本発明では、該搬送用ロ
ーラ７，７………の間隔に水平な支持部材８，８
………を設け、該支持部材を昇降させることによ
つて該支持部材の支持面が搬送用ローラ７，７…
……の搬送面より出没できる昇降手段を設ける。
即ち、前記支持部材８，８………を垂直ポスト
９，９………の上端部に固着した昇降枠１０を炉
底壁１１の下部に設け、該昇降枠１０の下面に車
輪１２，１２………を設けると共に、レール１３
上に車輪１４，１４を滑動させてシリンダー１５
の作動により炉長方向へ進退動するように可動枠
１６を設け、該可動枠の上面に固設された斜面状
のカム１７，１７………上に前記車輪１２，１２
………を支持して構成する。シリンダ１５によつ
て可動枠１６を進退動させれば昇降枠１０の車輪
１２，１２………はカム１７，１７………上を上
下し該昇降枠１０が上下動せられのでその垂直ポ
スト９，９………上に固着された支持部材８，８
………は前記搬送用ローラ７，７………の間隔か
ら出没するものである。このため搬送用ローラ
７，７………上に載つていた長尺被熱物ａ，ａ…
……は該支持部材８，８………に下方から突き上
げられて該支持部材の上面に支持される。１８，
１８………は該各支持部材８，８………の両端部
に上方へ垂直に突出させた回転自在なガードロー
ルであり、長尺被熱物ａ，ａ………がこのガード
ロールとの接触により幅方向へずれて脱落するの
を規制している。１９，１９………は天井部に設
けられた熱風吹付用のフアン、２０，２０………
はそのルーバー、２１はインナーカバー、２２は
ラジアントチユーブバーナを示す。このようにこ
の熱処理炉では炉内に搬入された長尺被熱物ａ，
ａ………を支持部材８，８………上に静止状態で
支持させてフアン１９，１９………により熱風を
吹付け所期の加熱が行なわれる。そしてその加熱
の間前記搬送用ローラ７，７………は無負荷回転
させたわみを防止する。所期の加熱を終えたらシ
リンダ１５を逆作動させ支持部材８，８………を
下降させて長尺被熱物ａ，ａ………を再び搬送用
ローラ７，７………上に載せ後続する冷却室５へ
搬送する。冷却室５では図示しないが前記支持部
材８，８………と同様に該冷却室床の搬送用ロー
ルの間隔に出没する支持部材が設けられていて、
該冷却室５においても冷却中は長尺被熱物をその
支持部材上に静止状態で支持できるようにしてい
る。 An embodiment of the present invention will be described below with reference to the drawings. Figure 1 is a plan view of the entire facility.
3 is a heat treatment furnace, 4 is an entrance door thereof, 5 is a cooling chamber following the heat treatment furnace, and 6 is an extraction table. In the hearth of the heat treatment furnace 3, a plurality of conveying rollers 7, 7... are arranged at regular intervals.
A sprocket is fixed to the protrusion outside the furnace at one end of each of the conveying rollers 7, 7, and is connected to a motor (not shown). ... is rotationally driven in a fixed direction, so the long object to be heated on the charging table 1 is supported by the conveying rollers 7, 7... and moved in the furnace length direction and carried into the furnace. be able to. The configuration up to this point is the same as a conventional roller hearth furnace. However, in the present invention, the supporting members 8, 8 are horizontal to the interval between the conveying rollers 7, 7...
...... is provided, and by raising and lowering the support member, the support surface of the support member can be adjusted to the conveyance rollers 7, 7...
Elevating means capable of appearing and retracting from the transport surface shall be provided.
That is, an elevating frame 10 having the support members 8, 8, . In addition to providing ...... rail 13
Slide the wheels 14, 14 onto the cylinder 15.
A movable frame 16 is provided so as to move forward and backward in the furnace length direction by the operation of the movable frame.
Construct in support of... When the movable frame 16 is moved forward and backward by the cylinder 15, the wheels 12, 12... of the elevating frame 10 move up and down on the cams 17, 17, and the elevating frame 10 is moved up and down. 9, 9... Support members 8, 8 fixed on top
. . . appears and retracts from the interval between the conveyance rollers 7, 7 . For this reason, the long heated objects a, a... placed on the conveyor rollers 7, 7...
. . . is pushed up from below by the support members 8, 8, . . . and supported on the upper surface of the support members. 18,
18...... is a rotatable guard roll that is vertically projected upward from both ends of each of the support members 8, 8......, and the elongated heated objects a, a...... are connected to this guard roll. This prevents it from shifting in the width direction and falling off due to contact. 19, 19...... is a hot air blowing fan installed on the ceiling, 20, 20......
21 indicates the louver, 21 indicates the inner cover, and 22 indicates the radiant tube burner. In this way, in this heat treatment furnace, the long objects to be heated a,
A... is supported in a stationary state on the supporting members 8, 8..., and hot air is blown by the fans 19, 19... to perform the desired heating. During the heating, the conveying rollers 7, 7, . . . rotate under no load to prevent deflection. After the desired heating is completed, the cylinder 15 is operated in reverse to lower the support members 8, 8... and place the long objects to be heated a, a... on the conveying rollers 7, 7... again. It is transported to the cooling chamber 5 that follows. Although not shown in the cooling chamber 5, a support member that appears and retracts between the conveying rolls on the floor of the cooling chamber is provided in the same way as the support members 8, 8......
Also in the cooling chamber 5, a long object to be heated can be supported in a stationary state on its support member during cooling.
なお前記ガードロール１８，１８………は支持
部材８，８………を下降させた際にも搬送用ロー
ラ７，７………の搬送面より上方へ突出していて
移動中の長尺被熱物ａ，ａ………にころがり接触
しその脱落を規制している。 Note that the guard rolls 18, 18, . . . protrude upward from the conveying surface of the conveying rollers 7, 7, even when the supporting members 8, 8, . It rolls into contact with hot objects a, a, and prevents them from falling off.
この発明のローラハース式熱処理炉は以上実施
例について説明したように、長尺被熱物を直に搬
送用ローラに乗せて移動させてもこれが横ずれし
た場合には支持部材の両端部に設けられたガード
レールにころがり接触による軽い摩擦力が作用す
るだけでその脱落が防止されるのでスリ疵の発生
も少なく製品の品質を向上させる。またラツク、
トレイ等を使用しないでよいので大幅な省エネル
ギー化が達成される。さらには支持部材はガード
ロールごと上昇することによつて長尺被熱物を該
支持部材上に安定的に静止状態で支持できその状
態で加熱することができるので、加熱中に従来の
ようにオシレーシヨンする必要がなくなり、オシ
レーシヨン実施によるスリ疵の発生や炉長が長く
なること等の問題が解消され、品質向上と省設備
化、省エネルギー化を可能とする有益な効果があ
る。 As explained in the embodiments above, the roller hearth type heat treatment furnace of the present invention has a roller hearth type heat treatment furnace provided at both ends of the support member in case the long object to be heated is moved laterally even if it is placed directly on the conveying roller. Only the slight frictional force exerted by the rolling contact on the guardrail prevents it from falling off, which reduces the occurrence of scratches and improves the quality of the product. Also easy,
Since there is no need to use a tray or the like, significant energy savings can be achieved. Furthermore, by raising the support member along with the guard roll, the long object to be heated can be stably supported on the support member in a stationary state and heated in that state, so that during heating, unlike conventional It eliminates the need for oscillation, eliminates problems such as the occurrence of scratches and lengthening of the furnace length due to oscillation, and has the beneficial effect of making it possible to improve quality, save equipment, and save energy.
図面はこの発明の一実施例を示したもので、第
１図は設備全体の平面図、第２図は熱処理炉の縦
断面図、第３図は第２図のＸ−Ｘ線断面図、第４
図は熱処理炉の横断面図である。
７……搬送用ローラ、８……支持部材、ａ……
長尺被熱物。
The drawings show an embodiment of the present invention; FIG. 1 is a plan view of the entire equipment, FIG. 2 is a longitudinal sectional view of the heat treatment furnace, and FIG. 3 is a sectional view taken along the line X-X in FIG. 2. Fourth
The figure is a cross-sectional view of the heat treatment furnace. 7...Conveyance roller, 8...Support member, a...
Long heated object.
Claims (1)
る複数本の搬送用ローラを水平に配列し、該搬送
用ローラ上に長尺被熱物を乗せて炉長方向へ移動
させるようにしたものであつて、該搬送用ローラ
の間隔に支持部材を設け、該支持部材の両端部に
回転自在なガードロールを設けて該ガードロール
を常に搬送用ローラの搬送面より上方に突出させ
ると共に、該支持部材の支持面を搬送用ローラの
搬送面より出没させる昇降手段を設けてなること
を特徴としたローラハース式熱処理炉。1. A plurality of conveyance rollers driven to rotate in a fixed direction by a motor are arranged horizontally on the hearth, and a long object to be heated is placed on the conveyance rollers and moved in the longitudinal direction of the furnace. A supporting member is provided at intervals between the conveying rollers, rotatable guard rolls are provided at both ends of the supporting member so that the guard rolls always protrude above the conveying surface of the conveying rollers, and A roller hearth type heat treatment furnace characterized by being provided with an elevating means for causing the support surface of the support member to protrude and retract from the conveyance surface of the conveyance roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9288881A JPS57207112A (en) | 1981-06-15 | 1981-06-15 | Roller-hearth type heat-treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9288881A JPS57207112A (en) | 1981-06-15 | 1981-06-15 | Roller-hearth type heat-treatment furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57207112A JPS57207112A (en) | 1982-12-18 |
| JPS6330366B2 true JPS6330366B2 (en) | 1988-06-17 |
Family
ID=14066987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9288881A Granted JPS57207112A (en) | 1981-06-15 | 1981-06-15 | Roller-hearth type heat-treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57207112A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5413916B2 (en) * | 1974-02-20 | 1979-06-02 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS572444Y2 (en) * | 1977-06-30 | 1982-01-16 |
-
1981
- 1981-06-15 JP JP9288881A patent/JPS57207112A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5413916B2 (en) * | 1974-02-20 | 1979-06-02 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57207112A (en) | 1982-12-18 |
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