JP3048538U - Cast sand recycling equipment - Google Patents
Cast sand recycling equipmentInfo
- Publication number
- JP3048538U JP3048538U JP1997009651U JP965197U JP3048538U JP 3048538 U JP3048538 U JP 3048538U JP 1997009651 U JP1997009651 U JP 1997009651U JP 965197 U JP965197 U JP 965197U JP 3048538 U JP3048538 U JP 3048538U
- Authority
- JP
- Japan
- Prior art keywords
- casting sand
- grindstone
- sand
- chamber
- air
- 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
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- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
(57)【要約】
【課題】 鋳砂の再生処理において、鋳砂の細粒化を抑
えて回収率を高める。
【解決する手段】 空気の流通を許し鋳砂の通過を阻止
する仕切板２によって筺体１を上部の再生室３と下部の
空気室４とに区画し、再生室３に砥石５を回転可能に配
備して該砥石５に回転駆動装置６を連繋し、空気室４に
圧力空気供給装置７を連繋し、再生室３に投入した鋳砂
を空気室４から再生室３に吹き上げる圧力空気によって
浮遊させて回転する砥石５に接しさせることにより鋳砂
表面に付着した不純物を取り去る。
(57) [Summary] [PROBLEMS] To improve the recovery rate of casting sand by suppressing the fineness of the casting sand in the regeneration treatment. A casing (1) is divided into an upper regeneration chamber (3) and a lower air chamber (4) by a partition plate (2) for allowing air to flow and preventing the passage of molding sand, and a grinding wheel (5) can be rotated in the regeneration chamber (3). The rotating wheel 6 is connected to the grindstone 5, the pressure air supply 7 is connected to the air chamber 4, and the casting sand injected into the regeneration chamber 3 is floated by the pressure air blown up from the air chamber 4 to the regeneration chamber 3. Then, the impurities adhered to the surface of the casting sand are removed by bringing the wheel into contact with the rotating grindstone 5.
Description
【０００１】[0001]
本考案は、使用後の鋳砂表面に付着した不純物を取り除いて再使用するための 鋳砂再生装置に関するものである。 The present invention relates to a casting sand recycling apparatus for removing impurities adhering to the surface of used casting sand for reuse.
【０００２】[0002]
鋳造に使用した鋳砂には、鋳砂を固めるためのバインダーである樹脂成分や、 塗型材(以下、不純物と呼ぶ)が付着しており、鋳砂の塊をそのまま砕いただけで は再使用できず、再生処理が必要である。 The foundry sand used in the casting process has a resin component that serves as a binder to solidify the foundry sand, and a coating material (hereinafter referred to as impurities), which can be reused just by crushing the foundry lump as it is. And a regenerating process is required.
【０００３】 従来の鋳砂再生装置は、筺体の底に溜めた鋳砂を水車型の掻き上げ装置によっ て持ち上げ、持ち上げた鋳砂を、回転している砥石の上方から自然落下させて砥 石に当てており、鋳砂が砥石に当たったときに、鋳砂表面に付着した不純物を削 り取っている。 砥石から落下した鋳砂は、掻き上げ装置によって、繰り返し砥石に振りかけら れる。[0003] In a conventional molding sand recycling apparatus, a molding wheel stored in the bottom of a casing is lifted by a water wheel-type scraping device, and the raised molding sand is naturally dropped from above a rotating grindstone. It is applied to the stone and removes impurities adhering to the surface of the sand when the sand hits the grindstone. The casting sand that has fallen from the grindstone is repeatedly sprinkled on the grindstone by the scraper.
【０００４】[0004]
上記従来の鋳砂再生装置は、回転している鋳砂を自然落下させて、回転してい る砥石に当てているため、砥石と鋳砂の当たりの衝撃が強く、鋳砂表面が削れ過 ぎて、鋳砂が細粒化され過ぎ、再使用できる鋳砂の回収率が低下し、廃棄せざる を得ない鋳砂の量が増え、廃棄処理コストも嵩む問題があった。 In the above-mentioned conventional sand reclaiming equipment, the rotating sand is dropped naturally and hits the rotating grindstone, so the impact between the grindstone and the sand is strong and the surface of the sand is excessively shaved. As a result, the casting sand was excessively fine-grained, the recovery rate of the casting sand that could be reused decreased, the amount of the casting sand which had to be discarded increased, and the disposal cost increased.
【０００５】 本考案は、鋳砂を浮遊させた状態で、回転砥石に接しさせることにより、鋳砂 の細粒化を少なくし、再使用可能な鋳砂の回収率を高めると共に、砥石の回転を 止めることなく、連続的に鋳砂の回収を可能ならしめる鋳砂再生装置を明らかに するものである。[0005] In the present invention, the casting sand is brought into contact with the rotating grindstone in a floating state, thereby reducing the fineness of the casting sand, increasing the recovery rate of the reusable casting sand, and increasing the rotation of the grindstone. The purpose of this study is to clarify a casting sand recycling device that enables continuous collection of casting sand without stopping the operation.
【０００６】[0006]
本考案の鋳砂再生装置は、空気の流通を許し鋳砂の通過を阻止する仕切板(２) によって筺体(１)を上部の再生室(３)と下部の空気室(４)とに区画し、再生室( ３)に砥石(５)を回転可能に配備して該砥石(５)に回転駆動装置(６)を連繋し、 空気室(４)に圧力空気供給装置(７)を連繋して構成される。 The casting sand recycling apparatus of the present invention divides the housing (1) into an upper regeneration chamber (3) and a lower air chamber (4) by a partition plate (2) that allows air to flow and prevents the passage of the casting sand. Then, a grindstone (5) is rotatably provided in the regeneration chamber (3), and a rotary drive unit (6) is connected to the grindstone (5). A compressed air supply device (7) is connected to the air chamber (4). It is composed.
【０００７】 具体的には、圧力空気供給装置(７)には加熱装置(71)が付設され、空気室(４) に加熱された圧力空気が供給されている。Specifically, a heating device (71) is additionally provided to the pressure air supply device (7), and heated air is supplied to the air chamber (4).
【０００８】 更に具体的には、再生室(３)の一端側に鋳砂投入口(30)、他端側側面には投入 口(30)よりも低い位置に排出口(32)が設けられ、砥石(５)は回転軸(52)の方向に 長く形成されて投入口(30)から排出口(32)側に向けて横向きに配備されている。More specifically, a casting sand inlet (30) is provided at one end of the regeneration chamber (3), and an outlet (32) is provided at a position lower than the inlet (30) on the other end side. The grindstone (5) is formed to be long in the direction of the rotating shaft (52), and is disposed laterally from the input port (30) to the discharge port (32).
【０００９】[0009]
再生室(３)に投入された鋳砂は、空気室(４)から再生室(３)に吹き上げる圧力 空気によって、浮遊しつつ回転する砥石(５)に接する。従来の様に、鋳砂が回転 する砥石に自然落下して衝突することに比べて、鋳砂が砥石(５)に当たる衝撃は 小さく、即ち、鋳砂が砥石と接する時の面圧は小さいため、鋳砂表面が不必要に 深く研磨されて細粒化されることを抑えることができ、鋳砂の回収率を高めるこ とができる。 The casting sand introduced into the regeneration chamber (3) comes into contact with the whetstone (5), which is rotating while floating, by the pressure air blown from the air chamber (4) to the regeneration chamber (3). Compared to the conventional method, where the casting sand naturally falls on the rotating grindstone and collides with it, the impact of the casting sand on the grindstone (5) is small, that is, the surface pressure when the casting sand comes into contact with the grindstone is small. In addition, it is possible to prevent the casting sand surface from being unnecessarily polished deeply and to be refined, thereby increasing the recovery rate of the casting sand.
【００１０】 又、筺体(１)一端側の投入口(30)と他端側の該投入口(30)よりも低い位置の排 出口(32)との間に、横長の回転砥石(５)を配備することにより、鋳砂は、投入口 (30)側から徐々に排出口(32)側に浮遊移行し、排出口(32)からオーバフローした 鋳砂が回収される。即ち、砥石(５)の回転を停止させることなく再生鋳砂の回収 が可能となり、再生装置の稼働率を高めることができる。[0010] A horizontally long rotating grindstone (5) is provided between the input port (30) at one end of the housing (1) and the discharge port (32) at a position lower than the input port (30) at the other end. With this arrangement, the casting sand gradually floats from the input port (30) to the discharge port (32), and the overflowed casting sand is collected from the discharge port (32). That is, the recycled casting sand can be collected without stopping the rotation of the grindstone (5), and the operating rate of the recycling device can be increased.
【００１１】 圧力空気を加熱しておくことにより、鋳砂に含まれる残留水分を速やかに乾燥 除去でき、鋳砂表面の不純物をより効果的に研磨除去できる。By heating the pressurized air, the residual moisture contained in the molding sand can be quickly dried and removed, and the impurities on the molding sand surface can be more effectively polished and removed.
【００１２】[0012]
図１、図２示す如く、横長中空の筺体(１)の下部に仕切板(２)を設けて、上部 の再生室(３)と下部の空気室(４)とに分けている。 仕切板(２)は、空気の通過は許すが鋳砂の通過は阻止する多孔質板である。 As shown in FIGS. 1 and 2, a partition plate (2) is provided at a lower portion of a horizontally long hollow casing (1), and is divided into an upper regeneration chamber (3) and a lower air chamber (4). The partition plate (2) is a porous plate that allows the passage of air but blocks the passage of molding sand.
【００１３】 筺体(１)の丸底溝条に湾曲した底板(11)は開閉可能であり、仕切板(２)の交換 等のメンテナンスの際に開くことができる。The bottom plate (11) curved to the round bottom groove of the housing (1) can be opened and closed, and can be opened at the time of maintenance such as replacement of the partition plate (2).
【００１４】 再生室(３)の高さ方向の略中央部にて、再生室(３)の長手方向に向けて横長の 回転砥石(５)が配備されている。 実施例の砥石(５)は、筺体(１)の前後の壁面に軸承された回転軸(52)に複数の 円板状砥石体(51)を等間隔に嵌めて構成されている。 回転軸(52)は、筺体(１)の前壁(36)を貫通してカップリング(61)を介して回転 駆動装置(６)に連繋されている。At a substantially central portion in the height direction of the regeneration chamber (3), a rotating grindstone (5) that is horizontally long in the longitudinal direction of the regeneration chamber (3) is provided. The grindstone (5) of the embodiment is configured by fitting a plurality of disc-shaped grindstone bodies (51) at equal intervals to a rotating shaft (52) supported on the front and rear wall surfaces of a housing (1). The rotating shaft (52) penetrates through the front wall (36) of the housing (1) and is connected to the rotary driving device (6) via a coupling (61).
【００１５】 筺体(１)の底板(11)の長さ方向の略中央部に接続口(41)が設けられ、圧力空気 供給装置(７)が接続される。圧力空気供給装置(７)に電気或いはガスによる加熱 装置(71)が連繋されている。A connection port (41) is provided at a substantially central portion in the longitudinal direction of the bottom plate (11) of the housing (1), and a pressure air supply device (7) is connected thereto. An electric or gas heating device (71) is connected to the pressurized air supply device (7).
【００１６】 筺体(１)の前壁(36)側上面には鋳砂の投入口(30)が設けられ、後壁側の側壁に 縦長の排出口(32)が開設されている。 投入口(30)の下方には投入鋳砂を砥石(５)側に案内する短いシュート(38)が配 備されている。An inlet (30) for casting sand is provided on the upper surface on the front wall (36) side of the housing (1), and a vertically elongated outlet (32) is opened on the side wall on the rear wall side. A short chute (38) for guiding the cast sand toward the grindstone (5) is provided below the inlet (30).
【００１７】 排出口(32)の上部には昇降式のシャッター(35)(以下、上シャッターと呼ぶ)が 設けられ、下部には横スライド式のシャッター(39)(以下、下シャッターと呼ぶ) が設けられている。 排出口(32)には案内ダクト(33)が下向きに連接されている。 下シャッター(39)が閉じた時の排出口(32)の開口下縁(32a)の高さは、後記の 如く筺体(１)内に投入されて下方からの圧力空気によって浮遊する鋳砂(８)の浮 遊層の上面高さと同程度、実施例では砥石(５)の回転中心よりも少し低い位置と する。An elevating shutter (35) (hereinafter, referred to as an upper shutter) is provided at an upper portion of the discharge port (32), and a horizontally sliding shutter (39) (hereinafter, referred to as a lower shutter) is provided at a lower portion. Is provided. A guide duct (33) is connected to the discharge port (32) downward. When the lower shutter (39) is closed, the height of the lower edge (32a) of the opening of the discharge port (32) is set in the casting sand ( The height is almost the same as the height of the upper surface of the floating layer of 8), and in the embodiment, is slightly lower than the rotation center of the grindstone (5).
【００１８】 筺体(１)の上面の長手方向の略中央部に排気口(12)が設けられ該排気口(12)は 集塵機(図示せず)を介して大気に解放されている。An exhaust port (12) is provided substantially at the center of the upper surface of the housing (1) in the longitudinal direction, and the exhaust port (12) is opened to the atmosphere via a dust collector (not shown).
【００１９】 図３に示す如く、砥石(５)は排出口(32)が砥石(５)の左位置にある場合、反時 計方向に回転する。砥石(５)の上方には筺体(１)の長手方向の全長に亘って邪魔 板(31)が設けられ、該邪魔板(31)は、筺体(１)の排出口(32)とは反対側の側壁か ら突設され、邪魔板(31)の排出口(32)の側縁と筺体(１)の排気口(12)側の側壁と の間に排気通路(10)を形成している。As shown in FIG. 3, the grindstone 5 rotates counterclockwise when the outlet 32 is at the left position of the grindstone 5. Above the grindstone (5), a baffle (31) is provided over the entire length in the longitudinal direction of the housing (1), and the baffle (31) is opposite to the discharge port (32) of the housing (1). An exhaust passage (10) is formed between the side edge of the exhaust port (32) of the baffle plate (31) and the exhaust port (12) of the housing (1). I have.
【００２０】 然して、上記鋳砂再生装置は、再生された鋳砂を案内ダクト(33)の出口(34)か ら連続して回収できる連続再生処理と、出口(34)から断続的に回収できるバッヂ 式再生処理の２通りの処理が可能である。However, the above-mentioned casting sand recycling apparatus can continuously recover recovered casting sand from the outlet (34) of the guide duct (33), and can intermittently recover the recovered sand from the outlet (34). Two types of processing, a batch type reproduction processing, are possible.
【００２１】 連続再生処理の場合、排出口(32)の下シャッター(39)を閉じて上シャッター(3 5)を開いておく。 投入口(30)から再生室(３)に投入された鋳砂は、図３に示す如く、空気室(４) から再生室(３)に吹き上げる圧力空気によって層状に浮遊しつつ、回転する砥石 (５)に接する。従来の様に、鋳砂が回転する砥石に自然落下して衝突することに 比べて、鋳砂が砥石(５)に当たる衝撃は小さく、即ち、鋳砂が砥石と接する時の 面圧は小さいため、鋳砂表面が不必要に深く研磨されて細粒化されることを抑え ることができ、鋳砂の回収率を高めることができる。In the case of the continuous reproduction process, the lower shutter (39) of the discharge port (32) is closed and the upper shutter (35) is opened. As shown in FIG. 3, the casting sand injected into the regeneration chamber (3) from the charging port (30) floats in a layer by pressurized air that is blown up from the air chamber (4) to the regeneration chamber (3), and the rotating grindstone is rotated. Touch (5). Compared to the conventional method, where the casting sand naturally falls on the rotating grindstone and collides with it, the impact of the casting sand on the grindstone (5) is small, that is, the surface pressure when the casting sand comes into contact with the grindstone is small. In addition, it is possible to prevent the surface of the molding sand from being unnecessarily polished deeply and to be refined, so that the recovery rate of the molding sand can be increased.
【００２２】 回転する砥石(５)によって跳ね上げられ鋳砂は邪魔板(31)に当たって跳ね返り 、そのまま排気口(12)側へ向かうことはない。 又、筺体(１)前側の投入口(30)よりも後側の排出口(32)の方が低位置にあるた め、浮遊鋳砂(８)は低い方の排出口(32)側へ自然に移動する。The casting sand that has been jumped up by the rotating grindstone (5) hits the baffle plate (31) and rebounds, and does not directly go to the exhaust port (12) side. Also, since the rear outlet (32) is located at a lower position than the front inlet (30) of the housing (1), the floating molding sand (8) moves to the lower outlet (32). Move naturally.
【００２３】 横長の砥石(５)は、投入口(30)から排出口(32)側へ向いているため、浮遊しつ つ排出口(32)側へ流れる鋳砂(８)は、効果的に砥石(５)に接触する。排出口(32) の開口下縁(32a)からオーバフローして案内ダクト(33)へ流れた鋳砂が出口(34) から排出される。Since the horizontally long whetstone (5) is directed from the input port (30) to the discharge port (32), the casting sand (8) flowing to the discharge port (32) side while floating is effective. Then, it comes into contact with the grinding wheel (5). The foundry sand overflowing from the lower edge (32a) of the opening of the discharge port (32) and flowing to the guide duct (33) is discharged from the outlet (34).
【００２４】 空気室(４)へ供給される圧力空気は、加熱装置(71)によって加熱されているた め、鋳砂に含まれる残留水分は速やかに乾燥除去され、鋳砂表面の不純物はより 効果的に研磨除去される。Since the pressurized air supplied to the air chamber (4) is heated by the heating device (71), residual moisture contained in the molding sand is quickly dried and removed, and impurities on the molding sand surface are reduced. It is polished and removed effectively.
【００２５】 上記の如く、砥石(５)の回転を停止させることなく再生鋳砂の回収が可能とな り、再生装置の稼働率を高めることができる。As described above, the recovered casting sand can be collected without stopping the rotation of the grindstone (5), and the operating rate of the recycling device can be increased.
【００２６】 バッチ式処理を行う場合、排出口(32)の上、下両シャッター(35)(39)を閉じて おいて、上記と同様にして再生処理を行う。一定時間経過後、下シャッター(39) 或いは上、下両シャッター(35)(39)を開き、排出口(32)から再生鋳砂を流出させ てさせて回収する。 研磨除去された不純物は、排気通路から上昇して排気口(12)から排出される。When performing the batch-type processing, the upper and lower shutters (35) and (39) are closed and the reproduction processing is performed in the same manner as described above. After a certain period of time, the lower shutter (39) or both the upper and lower shutters (35) and (39) are opened, and the recycled sand is discharged from the outlet (32) and collected. The polished and removed impurities rise from the exhaust passage and are discharged from the exhaust port (12).
【００２７】 本考案は上記実施例の構成に限定されることはなく、実用新案登録請求の範囲 で種々の変形が可能である。The present invention is not limited to the configuration of the above embodiment, and various modifications can be made within the scope of the claims for utility model registration.
【図１】再生装置の正面図である。FIG. 1 is a front view of a reproducing apparatus.
【図２】再生装置の平面図である。FIG. 2 is a plan view of the reproducing apparatus.
【図３】図１Ａ−Ａ線に沿う断面図である。FIG. 3 is a sectional view taken along the line AA of FIG. 1;
(１) 筺体 (２) 仕切板 (３) 再生室 (30) 投入口 (32) 排出口 (４) 空気室 (５) 砥石 (1) Housing (2) Partition plate (3) Regeneration room (30) Input port (32) Discharge port (4) Air chamber (5) Whetstone
Claims (3)
仕切板(２)によって筺体(１)を上部の再生室(３)と下部
の空気室(４)とに区画し、再生室(３)に砥石(５)を回転
可能に配備して該砥石(５)に回転駆動装置(６)を連繋
し、空気室(４)に圧力空気供給装置(７)を連繋し、再生
室(３)に投入した鋳砂を、空気室(４)から再生室(３)に
吹き上げる圧力空気によって浮遊させ、浮遊した鋳砂
(８)を回転する砥石(５)に接しさせることにより鋳砂表
面に付着した不純物を取り去る鋳砂再生装置。1. A casing (1) is divided into an upper regeneration chamber (3) and a lower air chamber (4) by a partition plate (2) for permitting the flow of air and preventing the passage of molding sand. A grindstone (5) is rotatably arranged in (3), a rotary drive (6) is connected to the grindstone (5), a pressure air supply device (7) is connected to an air chamber (4), and a regeneration chamber is provided. The casting sand charged in (3) is floated by pressurized air blown up from the air chamber (4) to the regeneration chamber (3), and the floating casting sand is
A casting sand recycling apparatus for removing impurities adhering to the surface of casting sand by bringing (8) into contact with a rotating grindstone (5).
が付設され、空気室(４)に加熱した圧力空気が供給され
る請求項１に記載の鋳砂再生装置。2. A heating device (71) is provided in the pressure air supply device (7).
2. The casting sand recycling apparatus according to claim 1, further comprising: a heated air pressure supplied to the air chamber.
他端側側面には投入口(30)よりも低い位置に排出口(32)
が設けられ、砥石(５)は回転軸(52)の方向に長く形成さ
れて投入口(30)から排出口(32)側に向けて横向きに配備
され、鋳砂(８)は、投入口(30)側から徐々に排出口(32)
側に浮遊移行し、排出口(32)からオーバフローした再生
鋳砂を回収する請求項１又は２に記載の鋳砂再生装置。3. A casting sand inlet (30) at one end of the regeneration chamber (3),
On the other side, the outlet (32) is lower than the inlet (30)
The grindstone (5) is formed to be long in the direction of the rotating shaft (52), and is disposed laterally from the input port (30) toward the discharge port (32). Discharge port (32) gradually from (30) side
3. The molding sand recycling device according to claim 1, wherein the recycled molding sand that floats to the side and overflows from the discharge port (32) is collected. 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1997009651U JP3048538U (en) | 1997-10-31 | 1997-10-31 | Cast sand recycling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1997009651U JP3048538U (en) | 1997-10-31 | 1997-10-31 | Cast sand recycling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3048538U true JP3048538U (en) | 1998-05-15 |
Family
ID=43182817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1997009651U Expired - Lifetime JP3048538U (en) | 1997-10-31 | 1997-10-31 | Cast sand recycling equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3048538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010075937A (en) * | 2008-09-24 | 2010-04-08 | Kao Corp | Method for manufacturing regenerated molding sand |
-
1997
- 1997-10-31 JP JP1997009651U patent/JP3048538U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010075937A (en) * | 2008-09-24 | 2010-04-08 | Kao Corp | Method for manufacturing regenerated molding sand |
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