JPH0788592A - Device for reconditioning molding sand - Google Patents

Device for reconditioning molding sand

Info

Publication number
JPH0788592A
JPH0788592A JP26151293A JP26151293A JPH0788592A JP H0788592 A JPH0788592 A JP H0788592A JP 26151293 A JP26151293 A JP 26151293A JP 26151293 A JP26151293 A JP 26151293A JP H0788592 A JPH0788592 A JP H0788592A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
sand
drum
rotary
rollers
supplying
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.)
Granted
Application number
JP26151293A
Other languages
Japanese (ja)
Other versions
JP3125272B2 (en )
Inventor
Akio Isono
Osamu Masuno
Kazuharu Matsui
Takehiko Matsumoto
Iwao Tomita
修 増野
巌 富田
和春 松井
武彦 松本
昭夫 磯野
Original Assignee
Sintokogio Ltd
新東工業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE:To execute the efficient reconditioning of molding sand without allowing the sand to be broken by arranging a rotary drum below a sand supplying chute and setting rollers in the rotary drum with a little gap with the inclining peripheral walls at right angles thereto. CONSTITUTION:The rotary drum 5 is arranged below the sand supplying chute 3 and the rollers 14 are set in the rotary drum 5 with a little gap with the inclining peripheral walls 5B at right angles thereto. The rotary drum 5 is rotated by driving a motor 10 and at the time of supplying the used sand into the sand supplying chute 3, the used sand is piled while being pressed to the inside of the inclining peripheral wall 5B by the centrifugal force of the rotary drum 5 and increased in thickness to form the sand layer. The sand layer is held between the inclining peripheral walls 5B and the rollers 14 at the time of coming to the positions of the rollers 14 and receives a large pressurizing force and also, shearing action is generated inside the sand, and the stuck material on the surface is detached and removed and the reconditioning of the sand is achieved. The reconditioned sand overflows a weir 5c and drops to the lower part of a treating vessel and is taken out to the outer part.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は鋳物を鋳造して鋳造品を取り出した後の鋳物砂を再使用できるようにするための再生装置に関する。 The present invention relates to a reproducing apparatus for enabling reuse molding sand after removal of the casting by casting a casting.

【0002】 [0002]

【従来の技術と問題点】従来鋳物砂を再生するための装置は種々開発されており、そのほとんどは実公昭61− BACKGROUND OF and Problems An apparatus for reproducing a conventional molding sand has been developed, most of the actual Publication 61-
35328号公報に開示されているように使用済鋳物砂(以下古砂という)を回転羽根車に供給し、供給された古砂を回転羽根車により壁面に向けて投射衝突させ、もって砂表面の付着物を除去するようにしている。 35328 Patent Publication No. disclosed spent foundry sand as a (hereinafter referred to as old sand) supplied to the rotating impeller, the old sand supplied to the projection collide toward the wall surface by the impellers, with the sand surface followed by removal of deposits. しかしこのような方式の鋳物砂再生では衝撃が強すぎて(弱いと付着物除去できない)砂自体の破砕が発生し、細粒化して再生砂の使用にバインダ−の添加量が増える等の問題があった。 However In such manner the foundry sand reclamation (can not deposit removal weak) impact is too strong crushing sand itself occurs, comminuted to a binder for use reclaimed sand - the amount increases problems such as was there. 本発明は上記の問題に鑑みて成されたもので、砂の破砕がない状況で効率よく砂再生ができる鋳物砂再生装置を提供することを目的とする。 The present invention has been made in view of the above problems, and an object thereof is to provide a foundry sand reclamation system that can efficiently sand reclamation with no crushing of the sand conditions.

【0003】 [0003]

【問題解決のための手段】上記の目的を達成するために本発明における鋳物砂再生装置は、下端の砂落し口を設けた砂供給シュ−トと、該砂供給シュ−トの下方において水平回転自在に配設されて円形底板の周端から斜め上外方延びる傾斜周壁及び該傾斜の上端から内側に張り出す堰を連結した回転ドラムと、該回転ドラム内において前記傾斜周壁に対して若干の隙間を設けて直角に配設された1個以上のロ−ラと、を具備したことを特徴とするものである。 Foundry sand reclamation apparatus of the present invention in order to achieve the above object problems means for solving] The sand supply shoe provided shakeout opening of the lower end - DOO and, sand supply shoe - horizontally in the City of lower and rotatably arranged to the rotation drum which is connected a weir protruding from the upper end of the diagonal on the outer extending inclined peripheral wall and the inclined from the circumferential edge of the circular bottom plate on the inside, slightly relative to the inclined wall in said rotating the drum one or more b, which were arranged at right angles are provided gap - is characterized in that the equipped and La, the.

【0004】 [0004]

【作用】本発明は上記のような解決手段を採用することにより、連続して回転ドラム内に供給される古砂は遠心力作用を受けて傾斜周壁に寄せられ、順次堆積してその厚みを増しながら砂層を形成してゆきロ−ラに接して摩擦力によりロ−ラを回転させることにより大きな加圧力及び剪断作用を受けて古砂表面の付着物が剥離除去されてゆく、このようにして砂層の厚みがさらに増大して堰の高さ以上に達すると付着物を除去された再生砂が堰をのり越えて排出される。 DETAILED DESCRIPTION OF THE INVENTION The present invention by adopting the solutions described above, old sand fed into the rotary drum continuously provided by, the inclined wall receives a centrifugal force acting, the thickness are sequentially deposited the frictional force in contact with La b - - b Yuki to form a sand layer while increasing by the great pressure and shearing action by rotating the La deposits of old sand surface Yuku been peeled off, thus Play sand thickness of the sand layer is further increased to remove the deposits reach over the height of the weir Te are discharged over glue the weir.

【0005】 [0005]

【実施例】以下本発明の実施例を図面に基づいて詳しく説明する。 Will be described in detail with reference to the embodiments drawings EXAMPLES Hereinafter the present invention. 円筒部1の下部に円錐筒部2を連結した処理槽Tの上端部には漏斗状の砂供給シュ−ト3が吊設されており、該砂供給シュ−ト3の下端は図示されないゲ− The cylindrical portion 1 of the upper end portion of the treatment tank T which is connected to the tapered tubular portion 2 to the lower funnel-shaped sand supply shoe - DOO 3 are suspended, the sand supply shoe - lower DOO 3 are not shown gate -
トを介して常に一定流量の砂が流下される砂落し口4が設けられている。 Shakeout port 4 always sand constant flow through the door is falling is provided. 該砂供給シュ−ト3の下方には回転ドラム5が配設されており、該回転ドラム5は、円形底板5Aと該円形底板5Aの周端から斜め上外方に延びる傾斜周壁5Bと、該傾斜周壁5Bの上端から内側に張り出す堰5Cと、をそれぞれ一体的に連結した構成にされている。 Sand feed shoe - below the bets 3 are disposed the rotary drum 5, the rotary drum 5 includes an inclined wall 5B extending obliquely upward outwardly from the peripheral edge of the circular bottom plate 5A and the circular bottom plate 5A, a weir 5C projecting inwardly from the upper end of the inclined wall 5B, the is a configuration integrally connected to each.

【0006】該回転ドラム5における円形底板5Aの下面中央部には回転軸6が固着されており、該回転軸6は中空状の、支持フレ−ム7上に取付けられた軸受8を介して回転自在に支持されている。 [0006] The is the central portion of the lower surface of the circular bottom plate 5A in the rotary drum 5 is fixed rotating shaft 6, is the rotating shaft 6 hollow, supporting frame - through bearings 8 mounted on the beam 7 It is rotatably supported. 該回転軸6の下端にはVプ−リ9が取付けられていて、前記処理槽Tの外側において前記支持フレ−ム7上に取付けられたモ−タ10 V-flop in the lower end of the rotary shaft 6 - have Li 9 is attached, the support frame on the outside of the processing bath T - motor mounted on arm 7 - motor 10
の回転軸11にVベルト12及びVプ−リ13を介して伝動可能に連結されている。 V-belt 12 and the V-flop to the rotating shaft 11 of the -, transmission-coupled via the re 13. 前記回転ドラム5内には前記傾斜周壁5Bに対して若干の隙間を設け、かつ傾斜周壁5Bに対し直角にして2個のロ−ラ14、14が配設されており、該ロ−ラ14、14の上面中央部には回転軸15、15が固着されている。 The rotation into the drum 5 is provided a slight clearance with respect to the inclined wall 5B, and two B and the perpendicular to the inclined wall 5B - has La 14, 14 are disposed, 該Ro - La 14 , rotating shaft 15, 15 is secured to the upper surface center portion of the 14. 該回転軸15、15は前記円筒部1内の上部位置に設けられたフレ−ム16に軸受17、17を介して回転自在に取付けられている。 Said rotary shaft 15, 15 frame provided in the upper position in the cylinder portion 1 - is attached rotatably through a bearing 17, 17 to the arm 16.

【0007】このように構成されたものは、モ−タ10 [0007] In this way what was configured, motor - and 10 other
を駆動させて回転ドラム5を図2の矢印方向に回転させた状態で砂供給シュ−ト3内に古砂を供給する。 Sand feed shoe in a state where the rotary drum 5 is driven and rotated in the arrow direction in FIG. 2 - supplying old sand in bets 3. これにより砂落し口4から一定量の古砂が回転ドラム5の円形底板5Aの中央部へ連続的に供給される。 This old sand certain amount of sand drop hole 4 is continuously supplied to the central portion of the circular bottom plate 5A of the rotary drum 5 by. 供給された古砂は回転ドラム5の遠心力により外方向へ移動され更に傾斜周壁5Bの内面に遠心力により押え付けられながら堆積してゆきその厚みを増して砂層Sを形成する。 Old sand supplied to form a sand layer S by increasing its thickness so on are deposited while being pressed by centrifugal force to the inner surface of the moved further inclined wall 5B outward by the centrifugal force of the rotating drum 5. この砂層Sの厚みが傾斜周壁5Bとロ−ラ14、14との隙間よりも厚くなるとロ−ラ14、14は古砂との摩擦力で回転を始める。 The thickness of the sand layer S and the inclined wall 5B Russia - becomes thicker than the gap between the La 14,14 b - La 14, 14 starts to rotate by the frictional force of the old sand. 更に時間が経過すると砂層Sはさらに厚みを増して堰5Cをのり越える。 Furthermore sand Over time S is greater than glue weir 5C further thicker. その後は堰5Cの幅にほぼ等しい厚みに一定に保たれる。 Thereafter held constant thickness substantially equal to the width of the weir 5C.

【0008】この状態で、砂層Sは回転ドラム5と共に回転し、ロ−ラ14、14の位置にくるとロ−ラ14、 [0008] In this state, the sand layer S rotates together with the rotary drum 5, and Russia - and comes to the position of La 14, 14 (b) - La 14,
14と回転ドラム5の傾斜周壁5Bに挾まれて大きな加圧力を受けると共に砂内部に剪断作用を生じこれにより古砂表面の付着物は剥離、除去され砂再生が成される。 Deposits large pressure rise to shearing action in the sand inside with under pressure thereby old sand surface 14 and is sandwiched inclined wall 5B of the rotary drum 5 is peeled, removed sand reclamation is made.
この砂再生は、加圧された状態での剪断作用により行なわれるものであるため効率よく付着物が剥離されると共に砂の破砕が少ない。 The sand regeneration, crushed sand is small with efficiently deposit for those carried out by the shearing action in a pressurized state is peeled off. 再生された砂は、堰5Cをのり越えて処理槽Tの下方へ落下してゆき外方へとり出される。 Regenerated sand and it is removed the weir 5C outward Yuki and falls downward of the processing tank T beyond glue. 以上の回転ドラム5内への古砂の供給、回転ドラム5内での砂再生及び砂再生の排出が連続して行なわれ古砂が連続的に再生されてゆく。 Supply of old sand to more rotating drum 5, old sand discharge of sand reclamation and sand regeneration in the rotary drum 5 is performed continuously Yuku is continuously regenerated.

【0009】上記実施例において回転ドラム5の周壁5 [0009] the peripheral wall of the rotary drum 5 in the above Example 5
Bを上外方に延びる上広がりの傾斜面にした理由は周壁に遠心力で砂層Sを形成する場合重力の影響で下方ほど堆積層の内径が小さくなるので砂層Sの厚さを上下方向にわたって一定にするためのものであり、これによりロ−ラ14、14による均等な加圧がなされより効率のよい砂再生が成される。 The thickness of the sand layer S so if the inner diameter of the downward and the deposited layer under the influence of gravity decreases reason for the inclined surface of the upper extent extending above outward is to form the sand layer S by centrifugal force to the peripheral wall of the B over vertical It is for a fixed, thereby Russia - uniform pressing by La 14, 14 is made an efficient sand reclamation than done. また実施例においては、ロ−ラ1 In the embodiment, Russia - La 1
4を2個配設しているが1個でもよくまた3個以上でもよい。 4 may be two arranged to have it well also three or more even one. さらにロ−ラ14、14の外周部の材質を研摩部材(砥石)にすることにより前記砂再生作用の他に回転ドラム5の傾斜周壁5Bとロ−ラ14、14に挾まれた砂は研摩部材による研摩作用を同時に受け、再生効率をさらに向上させることができる。 Further b - inclined wall 5B and b of the rotary drum 5 in addition to the sand reclamation act by the material of the outer peripheral portion of La 14, 14 into the abrasive member (grindstone) - sand sandwiched La 14,14 abrasive subjected to abrasive action by members at the same time, it is possible to further improve the regeneration efficiency.

【0010】 [0010]

【発明の効果】本発明は上記の説明から明らからように供給された古砂を回転ドラムによる遠心作用により傾斜周壁に堆積させて砂層を形成し、これをロ−ラにより加圧すると共に剪断作用を生じさせて砂を再生させるものであるから砂の破砕をきわめて少なくして効率よく砂再生を行なうことができる。 According to the present invention forms a sand layer is deposited on the inclined wall by centrifugal action old sand supplied revealed et so from the above description by rotating the drum, which Russia - shearing action with pressurized by La since the by causing those which reproduce the sand can be extremely small crushing sand efficiently perform sand reclamation.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の実施例を示す縦断正面図である。 1 is a longitudinal sectional front view showing an embodiment of the present invention.

【図2】図1におけるA−A矢視図である。 2 is an A-A arrow view in FIG.

【符号の説明】 DESCRIPTION OF SYMBOLS

3 砂供給シ−ト 4 砂落し口 5 回転ドラム 5A 円形底板 5B 傾斜周壁 5C 堰 14 ロ−ラ S 砂層 3 sand fed - DOO 4 shakeout openings 5 ​​rotary drum 5A circular bottom plate 5B inclined peripheral wall 5C weir 14 b - la S Sand

───────────────────────────────────────────────────── フロントページの続き (72)発明者 松本 武彦 愛知県新城市富岡字釜石54−1 ────────────────────────────────────────────────── ─── of the front page continued (72) inventor Takehiko Matsumoto Aichi Prefecture Shinshiro Tomioka shaped Kamaishi 54-1

Claims (2)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 下端に砂落し口4を設けた砂供給シュ− 1. A sand feed shoe to the shakeout port 4 provided at the lower -
    ト3と、該砂供給シュ−ト3の下方において水平回転自在に配設されて、円形底板5Aの周端から斜め上外方に延びる傾斜周壁5B及び該傾斜周壁5Bの上端から内側に張り出す堰5Cを連結した回転ドラム5と、該回転ドラム5内において前記傾斜周壁5Bに対して若干の隙間を設けて直角に配設された1個以上のロ−ラ14と、を具備したことを特徴とする鋳物砂再生装置 And bets 3, the sand supply shoe - being horizontally rotatably disposed below the bets 3, tension from the upper end of the inclined wall 5B and the inclined wall 5B extending obliquely upward outwardly from the peripheral edge of the circular bottom plate 5A inwardly a rotary drum 5 which is connected a weir 5C issue, one or more b disposed at right angles to provide a slight clearance with respect to the inclined wall 5B in the rotary drum 5 - that includes the a la 14 foundry sand reclamation device according to claim
  2. 【請求項2】 前記ロ−ラ14の外周部を研摩材で構成したことを特徴する請求項1記載の鋳物砂再生装置 Wherein said B - molding sand reproducing apparatus according to claim 1, wherein the outer peripheral portion of La 14, characterized in that is constituted by an abrasive
JP26151293A 1993-09-24 1993-09-24 Foundry sand reclamation equipment Expired - Lifetime JP3125272B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP26151293A JP3125272B2 (en) 1993-09-24 1993-09-24 Foundry sand reclamation equipment

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP26151293A JP3125272B2 (en) 1993-09-24 1993-09-24 Foundry sand reclamation equipment
DE1994623287 DE69423287T2 (en) 1993-09-24 1994-09-21 Apparatus for removing adhering to the surface of the granules of foundry sand material
EP19940114881 EP0647489B1 (en) 1993-09-24 1994-09-21 Device for the removal of material adhering to the surfaces of foundry sand grains
DE1994623287 DE69423287D1 (en) 1993-09-24 1994-09-21 Apparatus for removing adhering to the surface of the granules of foundry sand material
US08310492 US5507715A (en) 1993-09-24 1994-09-22 Device for cleaning adhering material off of sand
CN 94116492 CN1043315C (en) 1993-09-24 1994-09-24 Device for cleaning adhering material off of sand

Publications (2)

Publication Number Publication Date
JPH0788592A true true JPH0788592A (en) 1995-04-04
JP3125272B2 JP3125272B2 (en) 2001-01-15

Family

ID=17362938

Family Applications (1)

Application Number Title Priority Date Filing Date
JP26151293A Expired - Lifetime JP3125272B2 (en) 1993-09-24 1993-09-24 Foundry sand reclamation equipment

Country Status (1)

Country Link
JP (1) JP3125272B2 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
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US6149995A (en) * 1998-03-25 2000-11-21 Mitsubishi Polyester Film Gmbh Transparent polyester film with high oxygen barrier, its use and process for its production
US6200511B1 (en) 1998-03-25 2001-03-13 Mitsubishi Polyester Film Gmbh Polyester film having a high oxygen barrier and improved adhesion to metal layers its use and process for its production
US6238782B1 (en) 1998-09-02 2001-05-29 Mitsubishi Polyester Film Gmbh Biaxially oriented polyester film having more than one layer
US6280833B1 (en) 1998-07-31 2001-08-28 Mitsubishi Polyester Film Gmbh Biaxially oriented polypropylene film having more than one layer, its use, and process for its production
US6291053B1 (en) 1997-09-23 2001-09-18 Hoechst Diafoil Gmbh Multilayer biaxially oriented polyester film, and the use thereof, and process for the production thereof
US6383585B2 (en) 1998-03-25 2002-05-07 Mitsubishi Polyester Film Gmbh Sealable polyester film with high oxygen barrier, its use and process for its production
US6391410B1 (en) 1998-03-25 2002-05-21 Mitsubishi Polyester Film, Gmbh Use of a transparent polyester film as a gas/flavor barrier film
US6410132B1 (en) 1998-09-16 2002-06-25 Mitsubishi Polyester Film Gmbh Biaxially oriented polypropylene film, the use of the film and process for its production
US6528144B2 (en) 1997-09-23 2003-03-04 Hoechst Diafoil Gmbh Biaxially oriented polyester film, the use thereof, and process for the production thereof
US6534169B2 (en) 1998-03-25 2003-03-18 Mitsubishi Polyester Film Gmbh Polyester film with a high oxygen barrier, the use of the film and process for its production
US6537647B2 (en) 1998-03-25 2003-03-25 Mitsubishi Polyester Film Gmbh Polyester film with surface topography matched to the intended use, the use of the film and process for its production
US6551686B1 (en) 1998-04-01 2003-04-22 Mitsubishi Polyester Film Gmbh Biaxially oriented polyester film having more than one layer, process for its production, and its use as magnetic tape film
US6641924B1 (en) 1999-07-14 2003-11-04 Mitsubishi Polyester Film Gmbh White, biaxially oriented polyester film with cycloolefin copolymer (COC), process for producing the film, and its use
US6946192B2 (en) 1998-03-25 2005-09-20 Mitsubishi Polyester Film Gmbh Transparent polyester film with high oxygen barrier and additional functionality, its use and process for its production

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6528144B2 (en) 1997-09-23 2003-03-04 Hoechst Diafoil Gmbh Biaxially oriented polyester film, the use thereof, and process for the production thereof
US6291053B1 (en) 1997-09-23 2001-09-18 Hoechst Diafoil Gmbh Multilayer biaxially oriented polyester film, and the use thereof, and process for the production thereof
US6200511B1 (en) 1998-03-25 2001-03-13 Mitsubishi Polyester Film Gmbh Polyester film having a high oxygen barrier and improved adhesion to metal layers its use and process for its production
US6537647B2 (en) 1998-03-25 2003-03-25 Mitsubishi Polyester Film Gmbh Polyester film with surface topography matched to the intended use, the use of the film and process for its production
US6534169B2 (en) 1998-03-25 2003-03-18 Mitsubishi Polyester Film Gmbh Polyester film with a high oxygen barrier, the use of the film and process for its production
US6383585B2 (en) 1998-03-25 2002-05-07 Mitsubishi Polyester Film Gmbh Sealable polyester film with high oxygen barrier, its use and process for its production
US6391410B1 (en) 1998-03-25 2002-05-21 Mitsubishi Polyester Film, Gmbh Use of a transparent polyester film as a gas/flavor barrier film
US6149995A (en) * 1998-03-25 2000-11-21 Mitsubishi Polyester Film Gmbh Transparent polyester film with high oxygen barrier, its use and process for its production
US6946192B2 (en) 1998-03-25 2005-09-20 Mitsubishi Polyester Film Gmbh Transparent polyester film with high oxygen barrier and additional functionality, its use and process for its production
US6551686B1 (en) 1998-04-01 2003-04-22 Mitsubishi Polyester Film Gmbh Biaxially oriented polyester film having more than one layer, process for its production, and its use as magnetic tape film
US6280833B1 (en) 1998-07-31 2001-08-28 Mitsubishi Polyester Film Gmbh Biaxially oriented polypropylene film having more than one layer, its use, and process for its production
US6238782B1 (en) 1998-09-02 2001-05-29 Mitsubishi Polyester Film Gmbh Biaxially oriented polyester film having more than one layer
US6410132B1 (en) 1998-09-16 2002-06-25 Mitsubishi Polyester Film Gmbh Biaxially oriented polypropylene film, the use of the film and process for its production
US6641924B1 (en) 1999-07-14 2003-11-04 Mitsubishi Polyester Film Gmbh White, biaxially oriented polyester film with cycloolefin copolymer (COC), process for producing the film, and its use

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Publication number Publication date Type
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