JPH0712463U - Heat treatment equipment - Google Patents
Heat treatment equipmentInfo
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- JPH0712463U JPH0712463U JP4206793U JP4206793U JPH0712463U JP H0712463 U JPH0712463 U JP H0712463U JP 4206793 U JP4206793 U JP 4206793U JP 4206793 U JP4206793 U JP 4206793U JP H0712463 U JPH0712463 U JP H0712463U
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- heat treatment
- work
- cooling liquid
- lift
- tank
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Abstract
(57)【要約】
【目的】 連続的に搬送されてくる個々のワークの熱処
理条件に応じて、焼鈍，焼入など任意の熱処理を順次行
うことができ、複数の熱処理炉の夫々に冷却施設を設け
ることなくワークを短時間で冷却液槽に浸漬させること
ができると同時に、冷却液槽に溜まった砂を簡単に排出
できるようにすることを目的とする。
【構成】温度条件を個別に設定できる密閉函型の熱処理
炉1,2 がそのワーク搬入出口5 を正面に向けて列設さ
れ、各熱処理炉1,2 に対してワークを出し入れするワー
ク搬入出機構8 を備えたリフト7 を昇降させるエレベー
タ装置6 が、熱処理炉1,2 に沿って移動可能に配設さ
れ、熱処理炉1,2 から前記リフト7 上に搬出された高温
のワークを浸漬する冷却液槽4 が、そのリフト7 の降下
位置に移動可能に形成され、当該冷却槽4 には、ワーク
から落ちて槽底に溜まった砂を冷却液と共に適時排出す
る排砂口23が形成されている。
(57) [Summary] [Purpose] Any heat treatment such as annealing and quenching can be performed sequentially according to the heat treatment conditions of the individual workpieces that are continuously conveyed, and cooling facilities can be installed in each of the multiple heat treatment furnaces. It is an object of the present invention to allow a work to be immersed in a cooling liquid tank in a short time without providing the above, and at the same time, to easily discharge sand accumulated in the cooling liquid tank. [Structure] Closed box type heat treatment furnaces 1 and 2 in which temperature conditions can be individually set are lined up with their work loading and unloading ports 5 facing in front, and work loading and unloading for loading and unloading work into and from each heat processing furnace 1 and 2 An elevator device 6 for raising and lowering a lift 7 equipped with a mechanism 8 is arranged so as to be movable along the heat treatment furnaces 1 and 2, and the high-temperature work carried out from the heat treatment furnaces 1 and 2 onto the lift 7 is immersed. The cooling liquid tank 4 is formed so as to be movable to the lowered position of the lift 7, and the cooling tank 4 is provided with a sand discharge port 23 for timely discharging the sand that has fallen from the work and accumulated on the bottom of the tank together with the cooling liquid. ing.
Description
【０００１】[0001]
本考案は、連続的に搬送されてくるワークを所要数配設された熱処理炉に順次 搬入して個々に熱処理を行うことのできる熱処理装置に関する。 The present invention relates to a heat treatment apparatus capable of sequentially carrying in a plurality of workpieces that are continuously conveyed to a heat treatment furnace in which a required number of workpieces are arranged and individually performing heat treatment.
【０００２】[0002]
連続的に搬送されるワークを熱処理する熱処理装置を大別すると、両端が開放 されたトンネル型の熱処理炉にワークを連続的に搬入して一定速度で通過させな がら加熱するもの（特開昭６１−８４３２１号公報参照）と、複数並設された密 閉函型の熱処理炉にワークを順次搬入してその開閉扉を閉じ、一定時間経過後に 開閉扉を開いてワークを順次搬出するようにしたもの（特開昭６１−７６８７３ 号公報参照）がある。 The heat treatment equipment for heat-treating a continuously conveyed work is roughly classified into a heat treatment furnace of a tunnel type whose both ends are open, and the work is heated while passing it at a constant speed (Japanese Patent Laid-Open No. 2006-242242). No. 61-84321) and a plurality of closely-packed heat treatment furnaces arranged side by side and sequentially close the opening / closing door, and after a certain time elapses, the opening / closing door is opened to sequentially carry out the work. (See Japanese Patent Laid-Open No. 61-76873).
【０００３】 ここで、前者の連続式熱処理装置は、同一の熱処理条件で連続的に熱処理を行 うのに優れるものの、熱処理条件の異なるワークが連続的に搬送されてくる場合 には、その度ごとにラインを停止して炉内温度を調整しなければならないため、 生産効率が著しく低下し、後者は熱処理条件の異なるワークが連続的に搬送され てくる場合であっても、その度ごとにラインを停止することなく個別に熱処理を 行うことができる。Here, the former continuous heat treatment apparatus is excellent in continuously performing heat treatment under the same heat treatment condition, but when workpieces with different heat treatment conditions are continuously conveyed, Since the line must be stopped and the temperature inside the furnace must be adjusted for each time, the production efficiency is significantly reduced, and the latter causes the work to be carried under different heat treatment conditions continuously even if the work is carried continuously. Heat treatment can be performed individually without stopping the line.
【０００４】 ところで、熱処理はワークを加熱するだけでなく、例えば、金属材料の最高硬 さを得る目的で行われる焼入は、所定の温度まで加熱したワークを水や油に浸漬 して急冷しなければならない。 このような焼入に対応するためには冷却装置が必要となり、トンネル型熱処理 炉にあっては、その出口に一つの冷却装置を設けることにより連続的に焼入処理 を行うことができる。By the way, the heat treatment not only heats the work, but, for example, quenching performed for the purpose of obtaining the maximum hardness of the metal material is performed by immersing the work heated to a predetermined temperature in water or oil and rapidly cooling it. There must be. A cooling device is required to cope with such quenching, and in a tunnel type heat treatment furnace, quenching can be continuously performed by providing one cooling device at the outlet thereof.
【０００５】[0005]
【考案が解決しようとする課題】 しかしながら、多品種少量生産においては、例えば鋳造された異なる種類のワ ークが同一の生産ラインで搬送され、その熱処理条件も、１番目のワークは高温 焼入、２番目のワークは低温焼入、３番目のワークは焼鈍というように夫々異な る場合があるので、トンネル型の熱処理炉では各ワークの熱処理条件に応じて熱 処理を行うことができない。[Problems to be Solved by the Invention] However, in high-mix low-volume production, for example, different types of cast work are conveyed on the same production line, and the heat treatment conditions are that the first work is high temperature quenching. Since the second work may be different such as low temperature quenching and the third work may be annealing, the heat treatment cannot be performed in the tunnel type heat treatment furnace according to the heat treatment conditions of each work.
【０００６】 一方、複数の密閉函型の熱処理炉を並設したものにあっては、熱処理炉の出口 に冷却液槽を設けようとすると、すべての熱処理炉ごとに冷却液槽や当該冷却液 槽にワークを落とし込む搬送装置などの付帯設備を設けなければならず、設備費 が嵩むという問題がある。 また、設備費を軽減するために冷却液槽を一箇所に設置し、加熱したワークを その冷却液槽まで搬送して冷却しようとすると、搬送している途中でワークが徐 冷されてしまい、冷却速度の条件が厳しい場合に、適性な焼入処理を行うことが できないという問題がある。On the other hand, in a case where a plurality of closed box type heat treatment furnaces are arranged in parallel, if a cooling liquid tank is to be provided at the outlet of the heat treatment furnace, the cooling liquid tanks and the cooling liquid tanks will be provided for all the heat treatment furnaces. There is a problem that equipment costs increase because it is necessary to provide auxiliary equipment such as a transfer device for dropping the work into the tank. Also, in order to reduce the equipment cost, if a cooling liquid tank is installed in one place and the heated work is transferred to the cooling liquid tank for cooling, the work is gradually cooled during the transfer, There is a problem that a suitable quenching treatment cannot be performed when the cooling rate conditions are severe.
【０００７】 さらに、鋳造されたワークを焼入処理して鋳型の砂が槽底に溜まると冷却時に ワークの表面にその砂が付着してしまうので、砂が溜まったときにはポンプを使 用して冷却水を汲みだすと同時に砂も汲み出すようにしていたが、砂を吸い込む とでポンプが故障しやすく、そのたびに部品交換をしたりしなければならず、メ ンテナンスコストが嵩むという問題があった。[0007] Furthermore, when the cast work is quenched and the sand of the mold accumulates on the bottom of the tank, the sand adheres to the surface of the work during cooling. Therefore, when sand accumulates, use a pump. Although the sand was pumped out at the same time as the cooling water was pumped out, the pump is liable to break down if the sand is sucked in, and parts must be replaced each time, which increases maintenance costs. there were.
【０００８】 そこで、本考案は、連続的に搬送されてくる個々のワークの熱処理条件に応じ て、焼鈍，焼きならしなどの加熱処理だけでなく、焼入など冷却操作を含んだ任 意の熱処理を順次行うことができると同時に、複数の熱処理炉の夫々に冷却施設 を設ける必要がなく設備費を節約し、さらにワークを短時間で冷却液槽に浸漬さ せると同時に、冷却液槽に溜まった砂を簡単に排出できるようにすることを技術 的課題としている。Therefore, the present invention is intended to include not only heat treatment such as annealing and normalizing, but also cooling operation such as quenching, depending on the heat treatment conditions of individual workpieces that are continuously conveyed. The heat treatment can be performed sequentially, and at the same time, it is not necessary to provide a cooling facility for each of the plurality of heat treatment furnaces, which saves the equipment cost. Further, the work can be immersed in the cooling liquid tank in a short time and at the same time The technical issue is to be able to easily discharge the accumulated sand.
【０００９】[0009]
【課題を解決するための手段】 この課題を解決するために、本考案は、温度条件を個別に設定できる密閉函型 の熱処理炉がそのワーク搬入出口を正面に向けて列設され、各熱処理炉に対して ワークを出し入れするワーク搬入出機構を備えたリフトを昇降させるエレベータ 装置が、熱処理炉に沿って移動可能に配設され、熱処理炉から前記リフト上に搬 出された高温のワークを浸漬する冷却液槽が、そのリフトの降下位置に移動可能 に形成され、当該冷却槽には、ワークから落ちて槽底に溜まった砂を冷却液と共 に適時排出する排砂口が形成されていることを特徴とする。[Means for Solving the Problems] In order to solve this problem, the present invention provides a closed box type heat treatment furnace in which temperature conditions can be individually set, and the work loading / unloading ports are arranged in a line in front of each heat treatment. An elevator device equipped with a work loading / unloading mechanism for moving the work in and out of the furnace is arranged so as to be movable along the heat treatment furnace, and the high temperature work carried out from the heat treatment furnace onto the lift is moved. A cooling liquid tank to be immersed is formed so that it can move to the lowered position of the lift, and a sand discharge port is formed in this cooling tank to discharge the sand that has fallen from the work and accumulated on the bottom of the tank together with the cooling liquid in a timely manner. It is characterized by
【００１０】[0010]
熱処理炉は個別に温度設定できるので、熱処理条件の異なるワークが搬送され る場合、その熱処理条件に応じた任意の温度に設定することができ、例えば、各 熱処理炉を所定の焼入温度（例えば約 550℃) や所定の焼戻温度 (例えば約 200 ℃) に設定するなど、熱処理条件の違いに応じて異なる焼入温度，焼戻温度に任 意に設定しておく。 Since the temperature of each heat treatment furnace can be set individually, when workpieces with different heat treatment conditions are conveyed, it can be set to an arbitrary temperature according to the heat treatment conditions. Approximately 550 ° C) or a predetermined tempering temperature (for example, approximately 200 ° C). Set different quenching and tempering temperatures depending on the heat treatment conditions.
【００１１】 次いで、連続的に搬送されてきたワークはリフトに載せられて、まず焼入温度 に設定された熱処理炉に搬入されて焼入加熱が行われ、その終了時間にあわせて その熱処理炉の位置にエレベータ装置を移動させると共に、そのリフトの降下位 置に冷却液槽を移動させた状態で、加熱されたワークをリフト上に搬出し、当該 リフトを冷却液槽内まで降下させてワークを急冷し、その間にリフト及び冷却槽 を焼戻温度に設定された熱処理炉に前に移動させ、冷却終了時にリフトを上昇さ せてワークを熱処理炉に搬入し焼戻処理を行う。 したがって、冷却液槽及びエレベータ装置などは一組で足り、設備費が節約さ れると同時に、その場でリフトを降下させることにより短時間でワークを冷却液 槽に浸漬することができる。Next, the workpieces that have been continuously conveyed are placed on a lift, first carried into a heat treatment furnace set at a quenching temperature and subjected to quenching heating, and the heat treatment furnace is adjusted according to the end time. Move the elevator device to the position and move the cooling liquid tank to the descending position of the lift, then carry out the heated work on the lift and lower the lift to the inside of the cooling liquid tank. During that time, the lift and the cooling tank are moved to the heat treatment furnace set to the tempering temperature in the meantime. At the end of cooling, the lift is raised and the work is carried into the heat treatment furnace for tempering. Therefore, one set of the cooling liquid tank and the elevator device is sufficient, and the equipment cost is saved, and at the same time, the work can be immersed in the cooling liquid tank in a short time by lowering the lift on the spot.
【００１２】 さらに、鋳造されたワークを焼入処理する際に、ワークの表面に残っている鋳 型の砂が冷却液槽内に落ちて槽底に溜まっても、排砂口を開放することにより、 その砂が冷却液と共に例えばフロアに形成された廃液回収ピットに排出されるの で、砂を吸い込んでポンプが故障することがなく、また冷却液を簡単に交換でき るので、砂が溜まる前に交換することにより冷却時にワークの表面に砂が付着さ れることもない。Further, when quenching a cast work, even if the sand of the casting mold remaining on the surface of the work falls into the coolant tank and accumulates at the bottom of the tank, the sand discharge port should be opened. As a result, the sand is discharged together with the cooling liquid into, for example, a waste liquid recovery pit formed on the floor.Therefore, the pump does not malfunction due to the suction of sand, and the cooling liquid can be easily replaced, so that the sand accumulates. By replacing it before, sand does not adhere to the surface of the work during cooling.
【００１３】[0013]
以下、本考案を図面に示す実施例に基づいて具体的に説明する。 図１は本考案装置を示す正面図、図２はその側面図、図３はその要部を示す斜 視図である。 Hereinafter, the present invention will be specifically described with reference to the embodiments shown in the drawings. FIG. 1 is a front view showing the device of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a perspective view showing a main part thereof.
【００１４】 熱処理装置は、夫々にヒータ１ａ及び２ａが設けられてワークの熱処理条件に 応じて温度条件を個別に設定することができる密閉函型の熱処理炉１及び２が、 ワークの搬送路を挟んで左右両側に並設され、例えばワークを入れたケージＣを 搬送して前記各熱処理炉１及び２に搬入搬出するワーク搬送装置３と、焼入する 際に加熱されたワークを急冷するための冷却液槽４を備えている。In the heat treatment apparatus, heaters 1a and 2a are provided respectively, and the closed box type heat treatment furnaces 1 and 2 capable of individually setting the temperature conditions according to the heat treatment conditions of the work have a work transfer path. For example, a work transfer device 3 that is installed in parallel on both sides of the work piece and that transfers a cage C containing a work and transfers it into and out of each of the heat treatment furnaces 1 and 2, and to rapidly cool the work heated during quenching. The cooling liquid tank 4 is provided.
【００１５】 ワーク搬送装置３は、各熱処理炉１及び２に対してワークを出し入れするワー ク搬入出機構８を備えたリフト７と、当該リフト７を昇降させるエレベータ装置 ６からなり、エレベータ装置６が、各熱処理炉１及び２の正面に沿って布設され たレール９上を移動可能に配設されている。The work transfer device 3 includes a lift 7 having a work loading / unloading mechanism 8 for loading / unloading a work into / from each heat treatment furnace 1 and 2, and an elevator device 6 for moving the lift 7 up and down. Is movably arranged on a rail 9 laid along the front surface of each heat treatment furnace 1 and 2.
【００１６】 エレベータ装置６は、リフト７を案内するガイドレールを兼用するフレーム１ ０に昇降装置１１が取り付けられて成り、昇降装置１１は、上下に配設されたス プロケット１３Ｕ及び１３Ｄに平行掛けされた無端チェーン１４と、上方のスプ ロケット１３Ｕを回転駆動するモータ１５とからなり、また、前記無端チェーン １４にリフト７のスライダ７ｂが連結されている。なお、１４ａはリフト７の重 量を相殺するためのバランスウエイトである。The elevator device 6 is composed of a frame 10 that also serves as a guide rail for guiding the lift 7, and an elevating device 11 attached to the frame 10. The elevating device 11 is mounted in parallel on sprocket wheels 13U and 13D arranged vertically. The endless chain 14 and a motor 15 that rotationally drives the upper rocket 13U. The slider 7b of the lift 7 is connected to the endless chain 14. Incidentally, 14a is a balance weight for canceling the weight of the lift 7.
【００１７】 リフト７は、ケージＣを載置する台座７ａと、当該台座７ａの上端部に取り付 けられてフレーム１０に沿って上下に走行されるスライダ７ｂとから成り、台座 ７ａはその断面が冷却液槽４より小さく形成され、ケージＣを載置した状態でリ フト７ごと冷却液槽４に浸漬することができると共に、ケージＣを冷却液槽４に 浸漬した状態でその上端部が冷却液槽４に浸漬されない高さに形成されている。The lift 7 is composed of a pedestal 7a on which the cage C is placed, and a slider 7b attached to the upper end of the pedestal 7a and traveling vertically along the frame 10, the pedestal 7a having a cross section thereof. Is formed smaller than the cooling liquid tank 4, and the cage 7 can be immersed in the cooling liquid tank 4 together with the lift 7 and the upper end of the cage C can be immersed in the cooling liquid tank 4. It is formed at a height so as not to be immersed in the cooling liquid tank 4.
【００１８】 ワーク搬入出機構８は、先端に搬入出用ドッグ１６が形成されたチェーン１７ をリフト７，フレーム１０，熱処理炉１及び２内に形成されたガイド１８に沿っ て進退させるスプロケット１９及び駆動モータ２０からなり、ワークの搬送路の 左右両側に列設された熱処理炉１及び２に対してワークを搬入出できるように、 エレベータ装置６の左右両側に配設されている。 なお、駆動モータ２０は、リフト７を降下させてワークを冷却液槽４に浸漬さ せたときでも水没しないように、リフト７の上端部のスライダ７ｂに取り付けら れている。The work loading / unloading mechanism 8 includes a sprocket 19 for moving a chain 17 having a loading / unloading dog 16 formed at its tip end along a lift 7, a frame 10, and guides 18 formed in the heat treatment furnaces 1 and 2, and The elevator motor 6 is provided on both left and right sides of the elevator device 6 so that the work can be carried in and out of the heat treatment furnaces 1 and 2 arranged on both the left and right sides of the work transfer path. The drive motor 20 is attached to the slider 7b at the upper end of the lift 7 so that the work is not submerged even when the work is immersed in the cooling liquid tank 4 by lowering the lift 7.
【００１９】 冷却液槽４は、前記リフト７の真下に位置させることができるように、フレー ム１０を案内するレール９の内側に布設されたレール２１に沿って移動可能に配 設されている。 また、冷却液槽４は、例えば、水温８０℃の高温槽４ａと水温４０℃の低温槽 ４ｂが左右に連結されて二槽式に形成され、焼入処理の冷却温度に応じて高温槽 ４ａ又は低温槽４ｂのいずれか一方がリフト７の真下に位置決めされる。The cooling liquid tank 4 is movably arranged along a rail 21 laid inside a rail 9 that guides the frame 10 so that it can be positioned directly below the lift 7. . Further, the cooling liquid tank 4 is, for example, a high temperature tank 4a having a water temperature of 80 ° C. and a low temperature tank 4b having a water temperature of 40 ° C. that are connected left and right to form a two tank type, and the high temperature tank 4a is formed according to the cooling temperature of the quenching treatment. Alternatively, one of the low temperature tanks 4b is positioned directly below the lift 7.
【００２０】 高温槽４ａ及び低温槽４ｂの夫々には、鋳造品のワークを冷却する際にワーク から落ちて槽底に溜まった砂を冷却液と共にフロアに形成された廃液回収ピット ２２に適時排出する排砂口２３が形成され、夫々の槽底は、排砂口２３に向かっ て傾斜したホッパ形に形成されている。 また、廃液回収ピット２２に排出された砂は、冷却液と共に沈澱槽２４に流入 され、掻き取りコンベアやフィルタ等の分離装置（図示せず）を用いて砂と冷却 液に分離され、砂は再生処理されて鋳型として使用され、冷却液は冷却液槽４ａ ，４ｂに環流される。In each of the high-temperature tank 4a and the low-temperature tank 4b, when the cast work is cooled, the sand dropped from the work and accumulated at the bottom of the tank is discharged to the waste liquid recovery pit 22 formed on the floor together with the cooling liquid at appropriate times. A sand discharging port 23 is formed, and each tank bottom is formed in a hopper shape that is inclined toward the sand discharging port 23. The sand discharged into the waste liquid recovery pit 22 flows into the settling tank 24 together with the cooling liquid, and is separated into sand and the cooling liquid by using a separating device (not shown) such as a scraping conveyor or a filter. It is regenerated and used as a mold, and the cooling liquid is circulated to the cooling liquid tanks 4a and 4b.
【００２１】 なお、２５は、鋳造品のワークから熱処理炉１内に落ちた砂を排出するための 排砂装置であって、熱処理炉１の底部に沿って走行する台車２６にバキューム装 置２７が設けられ、その吸込口２８が熱処理炉１の底部に形成された排出口２９ に向かって伸縮するように形成され、吸込口２８が伸長して排出口２９に係合さ れると当該排出口２９の開閉扉３０が開かれて砂が吸引されるように成されてい る。Reference numeral 25 denotes a sand discharging device for discharging the sand dropped from the work of the cast product into the heat treatment furnace 1. The vacuum device 27 is mounted on a carriage 26 that runs along the bottom of the heat treatment furnace 1. Is provided so that the suction port 28 expands and contracts toward the discharge port 29 formed at the bottom of the heat treatment furnace 1, and when the suction port 28 extends and engages with the discharge port 29, The opening / closing door 30 of 29 is opened so that the sand is sucked.
【００２２】 以上が本発明の一例構成であり、次にその作用について説明する。 まず、ワークの熱処理条件に応じて、各熱処理炉１及び２の温度を設定する。 例えば、焼入温度５５０℃，冷却温度８０℃，焼戻温度２００℃で焼入処理を 行うワークを入れたケージＣと、焼入温度５００℃，冷却温度４０℃，焼戻温度 ２５０℃で焼入処理を行うワークを入れたケージＣが３：１の割合で搬送されて くる場合は、例えば搬送路を挟んで向かい合う熱処理炉１及び２を一組とし、図 １で見て右側の６組の熱処理炉Ｘについて、熱処理炉１を５５０℃，熱処理炉２ を２００℃に設定し、左側の２組の熱処理炉Ｙについて、熱処理炉１を５００℃ ，熱処理炉２を２５０℃に設定する。The above is an example configuration of the present invention, and the operation thereof will be described below. First, the temperatures of the heat treatment furnaces 1 and 2 are set according to the heat treatment conditions of the work. For example, a cage C containing a workpiece to be quenched at a quenching temperature of 550 ° C, a cooling temperature of 80 ° C, and a tempering temperature of 200 ° C, and a quenching temperature of 500 ° C, a cooling temperature of 40 ° C, and a tempering temperature of 250 ° C. When the cage C containing the work to be inserted is conveyed at a ratio of 3: 1, for example, the heat treatment furnaces 1 and 2 facing each other across the conveyance path are set as one set, and six sets on the right side in FIG. 1 are set. Regarding the heat treatment furnace X, the heat treatment furnace 1 is set at 550 ° C. and the heat treatment furnace 2 is set at 200 ° C., and the heat treatment furnace 1 is set at 500 ° C. and the heat treatment furnace 2 is set at 250 ° C. for the two sets of heat treatment furnaces Y on the left side.
【００２３】 そして、ワーク着脱荷位置（図示せず）にエレベータ装置６を移動させ、熱処 理炉１及び２のワーク搬入出口５の高さに位置決めされたリフト７上にケージＣ を載せた後、そのケージＣ内のワークの熱処理条件に応じてエレベータ装置６を 所望の熱処理炉１の正面に移動させる。Then, the elevator apparatus 6 is moved to the work loading / unloading position (not shown), and the cage C is placed on the lift 7 positioned at the height of the work loading / unloading port 5 of the heat treatment furnaces 1 and 2. After that, the elevator apparatus 6 is moved to the front of the desired heat treatment furnace 1 according to the heat treatment conditions of the work in the cage C.
【００２４】 このとき、リフト７は、熱処理炉１の高さに位置決めされているので、そのま まの高さで、ワーク搬入出口５の扉を開き、ワーク搬入出機構８を起動させてチ ェーン１７を進出させケージＣを熱処理炉１内に押し入れる。 次いで、ケージＣを熱処理炉１内に残してチェーン１７を炉１外へ引き出し、 ワーク搬入出口５の扉を閉じて搬入作業が完了する。 そして、ケージＣが搬送されてくる度に、その熱処理条件に応じた温度に設定 されている熱処理炉１内に順次搬入していく。At this time, since the lift 7 is positioned at the height of the heat treatment furnace 1, the work loading / unloading mechanism 8 is activated by opening the door of the work loading / unloading port 5 at that level. The cage 17 is advanced and the cage C is pushed into the heat treatment furnace 1. Next, the cage 17 is left inside the heat treatment furnace 1, the chain 17 is pulled out of the furnace 1, the door of the work loading / unloading port 5 is closed, and the loading operation is completed. Then, each time the cage C is transported, the cage C is sequentially loaded into the heat treatment furnace 1 set to a temperature according to the heat treatment conditions.
【００２５】 次いで、焼入加熱の終了時間に合わせて、熱処理炉１の正面にフレーム１０を 位置させると共に、リフト７の真下に冷却液槽４を位置させる。 このとき、熱処理炉Ｘで加熱されたワークを冷却する場合は高温槽４ａをリフ ト７の真下に位置決めし、熱処理炉Ｙで加熱されたワークを冷却する場合は、低 温槽４ｂがリフト７の真下にくるように位置決めする。Next, the frame 10 is positioned in front of the heat treatment furnace 1 and the cooling liquid tank 4 is positioned directly below the lift 7 in accordance with the end time of the quenching heating. At this time, when cooling the work heated in the heat treatment furnace X, the high temperature tank 4a is positioned directly below the lift 7, and when cooling the work heated in the heat treatment furnace Y, the low temperature tank 4b is lifted. Position it so that it is directly below.
【００２６】 そして、焼入加熱が終了した時点で、ワーク搬入出口５の扉を開き、搬入出機 構８のチェーン１７を熱処理炉１内に伸長させて、先端のドッグ１６をケージＣ に引っ掛けてリフト７上に引き出すと同時に、エレベータ装置６によりリフト７ を下端位置まで降下させ、当該リフト７に載せられたケージＣ内のワークを冷却 液槽４内に浸漬させる。 なお、リフト７上にケージＣを固定する保持機構を備えておけば、自由落下よ り速い速度でリフト７を降下させることができ、より速く冷却液槽４ａ内にワー クを浸漬させることができる。When the quenching heating is completed, the door of the work loading / unloading port 5 is opened, the chain 17 of the loading / unloading mechanism 8 is extended into the heat treatment furnace 1, and the dog 16 at the tip is hooked on the cage C. Simultaneously with pulling out onto the lift 7, the elevator 7 lowers the lift 7 to the lower end position, and the work in the cage C placed on the lift 7 is dipped in the cooling liquid tank 4. If a holding mechanism for fixing the cage C to the lift 7 is provided, the lift 7 can be lowered at a speed faster than free fall, and the work can be dipped into the cooling liquid tank 4a faster. it can.
【００２７】 次いで、冷却操作が終了した時点で、今度は、リフト７を熱処理炉２の高さま で上昇させ、当該熱処理炉２内にケージＣを搬入して焼戻処理を行う。 そして、所定時間焼戻加熱した後、その終了時間に合わせて熱処理炉２の正面 にエレベータ装置６を位置させると共に、当該熱処理炉２のワーク搬入出口５の 高さにリフト７を位置決めし、当該リフト７上にケージＣを搬出させ、ワーク着 脱荷位置へ移送してケージＣをリフト７から降ろして、次工程へ送る。Next, when the cooling operation is completed, this time, the lift 7 is raised to the height of the heat treatment furnace 2, the cage C is carried into the heat treatment furnace 2, and the tempering process is performed. Then, after tempering and heating for a predetermined time, the elevator device 6 is positioned in front of the heat treatment furnace 2 in accordance with the end time, and the lift 7 is positioned at the height of the work loading / unloading port 5 of the heat treatment furnace 2. The cage C is carried out onto the lift 7, transferred to the workpiece loading / unloading position, and the cage C is unloaded from the lift 7 and sent to the next step.
【００２８】 また、鋳造されたワークを焼入処理すると、冷却液槽４ａ，４ｂで急冷する際 に、ワークの表面に残っている鋳型の砂が冷却液槽４ａ，４ｂ内に落ち、ある程 度溜まったときに排砂口２３を開放すると、冷却液の流出に伴ってその水圧によ り槽内の砂が廃液回収ピット２２に排出されるので、砂を槽外へ排出するための ポンプ等は一切必要ない。 そして、砂と冷却液を沈澱槽２４で分離した後、砂は再生処理して鋳型の原料 として使用され、冷却液は冷却液槽４に再供給される。When the cast work is quenched, the mold sand remaining on the surface of the work falls into the cooling liquid tanks 4a and 4b during quenching in the cooling liquid tanks 4a and 4b. When the sand discharge port 23 is opened when the sand is collected once, the sand in the tank is discharged to the waste liquid recovery pit 22 due to the water pressure as the cooling liquid flows out, so a pump for discharging the sand out of the tank. Etc. are not necessary at all. Then, after the sand and the cooling liquid are separated in the precipitation tank 24, the sand is regenerated and used as a raw material for the mold, and the cooling liquid is supplied again to the cooling liquid tank 4.
【００２９】 なお、上記実施例では、右側の６組の熱処理炉Ｘと、左側の２組の熱処理炉Ｙ をワークの熱処理条件に応じて夫々異なる温度に設定することにより、焼入温度 ，冷却温度，焼戻温度が異なる二種類の熱処理を行う場合についてのみ説明した が、熱処理炉１及び２は個別に温度制御することができるので、二種類に限らず 任意の熱処理条件に応じて温度を設定することができる。In the above-described embodiment, the six heat treatment furnaces X on the right side and the two heat treatment furnaces Y 2 on the left side are set to different temperatures according to the heat treatment conditions of the work, thereby quenching temperature and cooling Only the case of performing two types of heat treatments with different temperatures and tempering temperatures has been described, but since the heat treatment furnaces 1 and 2 can individually control the temperature, the temperature is not limited to two types and the temperature can be adjusted according to any heat treatment condition. Can be set.
【００３０】 例えば、焼鈍，焼きならしなどを行う場合は、熱処理炉１及び２の昇温速度， 保持温度，保持時間，冷却速度などを予め設定しておき、ワークの熱処理条件に 応じた熱処理炉１又は２にワークを搬入して熱処理を行った後に冷却液槽４内に 浸漬させることなく、次工程へ送るようにすればよい。 また、熱処理炉１及び２をワークの搬送路を挟んで左右両側に設置する場合に ついて説明したが、本発明はこれに限らず、熱処理炉を上下二段に設置する場合 であってもよい。For example, when performing annealing, normalizing, etc., the temperature rising rate, the holding temperature, the holding time, the cooling rate, etc. of the heat treatment furnaces 1 and 2 are set in advance, and the heat treatment according to the heat treatment conditions of the work is performed. After the work is carried into the furnace 1 or 2 and subjected to the heat treatment, the work may be sent to the next process without being immersed in the cooling liquid tank 4. Further, the case where the heat treatment furnaces 1 and 2 are installed on both the left and right sides of the workpiece transfer path has been described, but the present invention is not limited to this, and the heat treatment furnaces may be installed in two upper and lower stages. .
【００３１】[0031]
以上述べたように、本考案によれば、同一の生産ラインに熱処理条件の異なる ワークが連続的に搬送されてくる場合であっても、ラインを停止することなく、 個々ワークの熱処理条件に応じて、焼鈍，焼きならしなどの加熱処理だけでなく 、焼入など冷却操作を含んだ任意の熱処理を順次行うことができると同時に、焼 入用の冷却液槽及び当該冷却液槽にワークを落とし込む搬送装置を複数の熱処理 炉の夫々に設ける必要がないので、設備費を軽減することができ、しかも冷却液 槽に浸漬するまでの時間を短縮することができるという優れた効果を有し、さら に、鋳造品を焼入処理することにより冷却液槽内に砂が溜まってもこれを槽外へ 排出するためのポンプ等は一切不要となるのでメンテナンスコストを低減するこ とができるという効果も有する。 As described above, according to the present invention, even if workpieces with different heat treatment conditions are continuously conveyed to the same production line, the line can be adjusted according to the heat treatment conditions of individual workpieces without stopping the line. Therefore, not only heat treatment such as annealing and normalizing, but also any heat treatment including cooling operation such as quenching can be sequentially performed, and at the same time, the cooling liquid tank for quenching and the workpiece in the cooling liquid tank are Since it is not necessary to provide a transfer device for dropping into each of a plurality of heat treatment furnaces, it has an excellent effect that the facility cost can be reduced and the time until the immersion in the cooling liquid tank can be shortened. Furthermore, even if sand is accumulated in the cooling liquid tank by quenching the cast product, no pump or the like is needed to discharge the sand out of the tank, so maintenance costs can be reduced. Effect also has.
【図１】本考案に係る熱処理装置を示す正面図。FIG. 1 is a front view showing a heat treatment apparatus according to the present invention.
【図２】その側面図。FIG. 2 is a side view thereof.
【図３】その要部を示す斜視図。FIG. 3 is a perspective view showing a main part thereof.
１・・・熱処理炉 ２・・・熱処理炉 ３・・・ワーク搬送装置 ４・・・冷却液槽 ５・・・ワーク搬入出口 ６・・・エレベータ装置 ７・・・リフト ８・・・ワーク搬入出機構 １４・・・無端チェーン ２３・・・排砂口 1 ... Heat treatment furnace 2 ... Heat treatment furnace 3 ... Work transfer device 4 ... Coolant tank 5 ... Work loading / unloading port 6 ... Elevator device 7 ... Lift 8 ... Work loading Ejection mechanism 14 ... Endless chain 23 ... Sand removal port
Claims (1)
熱処理炉(1, 2)がそのワーク搬入出口（５）を正面に向
けて列設され、各熱処理炉(1, 2)に対してワークを出し
入れするワーク搬入出機構（８）を備えたリフト（７）
を昇降させるエレベータ装置（６）が、熱処理炉(1, 2)
に沿って移動可能に配設され、熱処理炉(1, 2)から前記
リフト（７）上に搬出された高温のワークを浸漬する冷
却液槽（４）が、そのリフト（７）の降下位置に移動可
能に形成され、当該冷却槽（４）には、ワークから落ち
て槽底に溜まった砂を冷却液と共に適時排出する排砂口
（23）が形成されていることを特徴とする熱処理装置。1. A closed box type heat treatment furnace (1, 2) in which temperature conditions can be individually set is lined up with its work loading / unloading port (5) facing the front, and for each heat treatment furnace (1, 2). (7) with work loading / unloading mechanism (8)
Elevator device (6) that raises and lowers the heat treatment furnace (1, 2)
A cooling liquid tank (4), which is arranged so as to be movable along the heat treatment furnace (1, 2) and into which the high-temperature work carried out onto the lift (7) is immersed, is located at the lower position of the lift (7). The heat treatment is characterized in that the cooling tank (4) is provided with a sand discharge port (23) for timely discharging the sand that has fallen from the work and accumulated on the bottom of the tank together with the cooling liquid in the cooling tank (4). apparatus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993042067U JP2603305Y2 (en) | 1993-07-30 | 1993-07-30 | Heat treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1993042067U JP2603305Y2 (en) | 1993-07-30 | 1993-07-30 | Heat treatment equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0712463U true JPH0712463U (en) | 1995-02-28 |
| JP2603305Y2 JP2603305Y2 (en) | 2000-03-06 |
Family
ID=12625749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1993042067U Expired - Fee Related JP2603305Y2 (en) | 1993-07-30 | 1993-07-30 | Heat treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2603305Y2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS493914U (en) * | 1972-04-13 | 1974-01-14 | ||
| JPS49129913U (en) * | 1973-03-08 | 1974-11-08 | ||
| JP2009236367A (en) * | 2008-03-26 | 2009-10-15 | Koyo Thermo System Kk | Heat treatment device |
| JP2020176323A (en) * | 2019-04-23 | 2020-10-29 | リョービ株式会社 | Quenching apparatus and quenching method |
-
1993
- 1993-07-30 JP JP1993042067U patent/JP2603305Y2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS493914U (en) * | 1972-04-13 | 1974-01-14 | ||
| JPS49129913U (en) * | 1973-03-08 | 1974-11-08 | ||
| JP2009236367A (en) * | 2008-03-26 | 2009-10-15 | Koyo Thermo System Kk | Heat treatment device |
| JP2020176323A (en) * | 2019-04-23 | 2020-10-29 | リョービ株式会社 | Quenching apparatus and quenching method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2603305Y2 (en) | 2000-03-06 |
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