JP4238281B1 - Scum remover - Google Patents

Scum remover Download PDF

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JP4238281B1
JP4238281B1 JP2008107347A JP2008107347A JP4238281B1 JP 4238281 B1 JP4238281 B1 JP 4238281B1 JP 2008107347 A JP2008107347 A JP 2008107347A JP 2008107347 A JP2008107347 A JP 2008107347A JP 4238281 B1 JP4238281 B1 JP 4238281B1
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scum
rotary
scraper
plate
scraping
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JP2009254977A (en
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健 鶴見
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鶴見鉄工合資会社
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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Abstract

【課題】粘性の高い油性スカムでも支障なく除去できるベルト式のスカム除去装置を提供する。
【解決手段】液体タンク８の上方に設置した駆動ローラ１２と液中の従動ローラ１０との間に無端ベルト５を懸け渡して回転させ、無端ベルト５の下降軌道側に無端ベルト５に付着して上昇したスカム３を掻き取る断面円弧状の固定掻き板１３を取り付ける。固定掻き板１３の円弧状表面に付着したスカム３を掻き落とす回転式掻き板１４を設け、更に、回転式掻き板１４の上昇回転軌道側に揺動可能に垂下して回転式掻き板１４に付着したスカム３を剥ぎ落とす剥ぎ落とし板１５を設ける。
【選択図】図１
A belt-type scum removing device capable of removing even a highly viscous oil-based scum without hindrance.
An endless belt 5 is suspended and rotated between a driving roller 12 installed above a liquid tank 8 and a driven roller 10 in the liquid, and adheres to the endless belt 5 on the descending track side of the endless belt 5. A fixed scraping plate 13 having an arc-shaped cross section for scraping the raised scum 3 is attached. A rotary scraper 14 for scraping off the scum 3 adhering to the arcuate surface of the fixed scraper 13 is provided. Further, the rotary scraper 14 is suspended downwardly on the ascending rotation orbit side of the rotary scraper 14 so as to swing to the rotary scraper 14. A stripping plate 15 for stripping off the attached scum 3 is provided.
[Selection] Figure 1

Description

本発明は、工作機械の切削部の冷却、潤滑に使用して貯留タンクに回収された水溶性切削液の表面に切り粉や研磨粉等を含んで浮上する油、排水その他の液面に浮遊する懸濁物質その他の不純物（これらを総称して本明細書ではスカムと呼ぶ。）を分離、除去するスカム除去装置に関する。   The present invention is used to cool and lubricate a cutting part of a machine tool, and to float on the surface of a water-soluble cutting fluid collected in a storage tank, including swarf and abrasive powder, floating on other liquid surfaces The present invention relates to a scum removing device for separating and removing suspended substances and other impurities (collectively referred to herein as scum).

工作機械には切削工具や被切削物の冷却、潤滑のために水溶性切削液が使用される。使用した切削液は貯留タンク内に回収され、混入した不純物を除去して再使用される。混入不純物のうち油分は比重差により切削液表面に浮上する。浮上する油分には切り粉、研磨粉、その他の不純物も含まれていることが多い。   Machine tools use water-soluble cutting fluid to cool and lubricate cutting tools and workpieces. The used cutting fluid is collected in the storage tank, and the mixed impurities are removed and reused. Of the mixed impurities, oil floats to the surface of the cutting fluid due to the difference in specific gravity. Oil that floats often contains chips, abrasive powders, and other impurities.

工作機械に使用されて回収された切削液の液面に浮上する油性スカムを除去する装置としては、従来、各種方式が提案されている。最も代表的なのは、図６に示すようなベルト式の装置（例えば、特許文献１〜３参照）である。このベルト式装置では、切削液貯留タンク５０の液面５１上方に設けた回転駆動ローラ５２と液面下に設けた従動ローラ５３との間に無端ベルト５４が懸け渡され、無端ベルト５４の下降軌道にはスクレーパー５５が無端ベルト５４の表面に先端を当接させた状態で取り付けられている。   Conventionally, various systems have been proposed as an apparatus for removing oily scum that floats on the surface of cutting fluid collected and used in machine tools. The most representative is a belt-type device as shown in FIG. 6 (see, for example, Patent Documents 1 to 3). In this belt-type device, an endless belt 54 is suspended between a rotation driving roller 52 provided above the liquid level 51 of the cutting fluid storage tank 50 and a driven roller 53 provided below the liquid level, and the endless belt 54 is lowered. A scraper 55 is attached to the track with the tip abutting against the surface of the endless belt 54.

回転駆動ローラ５２により無端ベルト５４を矢印方向に回転させると、無端ベルト５４が液面５１から上昇する際にその表面に油性スカムが付着する。付着したスカムは無端ベルト５４と共に上昇し、無端ベルト５４の下降軌道に配置したスクレーパー５５により掻き取られる。そしてスカム回収タンク５６に落下して除去される。   When the endless belt 54 is rotated in the direction of the arrow by the rotation driving roller 52, when the endless belt 54 rises from the liquid surface 51, oily scum adheres to the surface. The adhering scum rises together with the endless belt 54 and is scraped off by a scraper 55 disposed on the descending track of the endless belt 54. And it falls to the scum collection tank 56 and is removed.

スカムの主成分である潤滑油は温度が低下すると粘性が増す。またスカムに切り粉、研磨粉等が多く混入した場合も粘性が増す。粘性の増したスカムはゼリー状になって流動しなくなる。上記ベルト式装置の場合、ゼリー状になったスカムは掻き取られても流れ落ちずにスクレーパー５５上に堆積する。堆積したスカムは更に粘性を増して無端ベルト５４に当接しているスクレーパー５５の先端部に固着し、その掻き取り能力を低下させ、やがて装置を機能停止に陥らせる。
特開２０００−３４３３７６号公報 特開平０９−１８７７６４号公報 特開平０７−２５６２５２号公報 Lubricating oil, the main component of scum, increases in viscosity as the temperature decreases. The viscosity also increases when a large amount of cutting powder, polishing powder or the like is mixed in the scum. The scum with increased viscosity becomes a jelly and does not flow. In the case of the belt type device, the scum in the form of jelly is deposited on the scraper 55 without flowing down even if it is scraped off. The accumulated scum further increases in viscosity and adheres to the tip of the scraper 55 that is in contact with the endless belt 54, reducing its scraping ability and eventually causing the device to stop functioning.
JP 2000-343376 A Japanese Patent Laid-Open No. 09-187764 Japanese Patent Application Laid-Open No. 07-256252

本発明は、従来技術のこうした問題点を解決するためになされたもので、その課題は、粘性の高い油性スカムでも機能不善を起こすことなく効率良く除去できるベルト式のスカム除去装置を提供することにある。   The present invention has been made to solve such problems of the prior art, and the problem is to provide a belt-type scum removing device that can efficiently remove even a viscous oily scum without causing poor function. It is in.

前記課題を解決するための手段を、理解を容易にするため後述する実施形態の参照符号を付して説明する。請求項１に記載の発明は、液体タンク８の上方に配設した駆動ローラ１２と液中の従動ローラ１０との間に無端ベルト５を懸け渡して回転させ、無端ベルト５の表面に付着して上昇したスカム３を無端ベルト５の下降軌道側に配設した固定掻き板１３にて掻き取り除去するスカム除去装置おいて、固定掻き板１３は駆動ローラ１２の回転軸２２に垂直な断面が円弧の一部をなす形状に形成されて一方の円弧板端部を無端ベルト５の表面に当接させてスカム３を掻き取るように配設してあり、掻き取られて固定掻き板１３に付着したスカム３は駆動ローラ１２の回転軸２０に平行な軸回りに駆動ローラ１２とは逆方向に回転してその先端板端部を固定掻き板１３の円弧状表面に沿って移動させる回転式掻き板１４により掻き落とすように構成してあり、回転式掻き板１４の上昇回転軌道側には該回転式掻き板１４の回転軸２７に平行で回転式掻き板１４の先端軌跡より上方に配置した軸回りに揺動可能に垂下吊持され、吊持された下端は回転式掻き板１４の回転軸１４より下方に位置する大きさの剥ぎ落とし板１５が更に配設してあり、該剥ぎ落とし板１５の下端は回転式掻き板の１４上昇回転時に該回転式掻き板１４のスカム掻き面に当接し、当接した下端が回転式掻き板１４の回転とともに回転式掻き板１４のスカム掻き面をその先端方向に向けて摺動して回転式掻き板１４に付着したスカム３をスカム掻き面の先端方向に掻き寄せて遂には回転式掻き板１４の先端部から落下させ、回転式掻き板１４の先端が剥ぎ落とし板１５に当接した状態になった後は、回転式掻き板１４はその先端を剥ぎ落とし板１５の回転式掻き板側の面に当接させながら回転してやがて剥ぎ落とし板１５から離れて再び固定掻き板１３に付着したスカム３を掻き落とす動作位置に復帰し、剥ぎ落とし板１５は回転式掻き板１４により回転式掻き板側の面を支えられた状態で揺動して回転式掻き板１４の先端が該面を離れたときに最初の垂下吊持姿勢に復帰するように構成してあることを特徴とするスカム除去装置である。 Means for solving the above-described problems will be described with reference numerals of embodiments to be described later for easy understanding. In the first aspect of the present invention, the endless belt 5 is suspended and rotated between the driving roller 12 disposed above the liquid tank 8 and the driven roller 10 in the liquid, and is attached to the surface of the endless belt 5. In the scum removing device that scrapes and removes the raised scum 3 by the fixed scraper 13 disposed on the descending track side of the endless belt 5, the fixed scraper 13 has a cross section perpendicular to the rotation shaft 22 of the drive roller 12. It is formed in a shape that forms a part of an arc and is disposed so that one end of the arc plate contacts the surface of the endless belt 5 and scrapes off the scum 3. The adhering scum 3 rotates about the axis parallel to the rotation axis 20 of the driving roller 12 in the direction opposite to the driving roller 12 and moves the end of the tip plate along the arcuate surface of the fixed scraping plate 13. The scraper 14 is configured to scrape off. The rotary scraper 14 is suspended on the ascending rotation orbit side so as to be swingable around an axis arranged parallel to the rotary shaft 27 of the rotary scraper 14 and above the tip locus of the rotary scraper 14. Further, a stripped plate 15 having a size positioned below the rotating shaft 14 of the rotary scraper 14 is further disposed at the suspended lower end, and the lower end of the stripper plate 15 is a rotary scraper. When the rotary scraping plate 14 is rotated upward, it comes into contact with the scum scraping surface of the rotary scraping plate 14, and the lower end touched slides the scum scraping surface of the rotary scraping plate 14 toward the tip thereof with the rotation of the rotary scraping plate 14. The scum 3 adhering to the rotary scraper 14 is scraped toward the tip of the scum scraping surface and finally dropped from the tip of the rotary scraper 14 so that the tip of the rotary scraper 14 contacts the scraping plate 15. After coming into contact, the rotary scraper 14 Rotate while the tip of the scraping plate 15 is brought into contact with the surface of the rotary scraping plate side of the stripping plate 15, and eventually return to the operation position where the scum 3 attached to the fixed scraping plate 13 is scraped off again after moving away from the stripping plate 15. The stripping plate 15 swings in a state where the surface of the rotary scraper side is supported by the rotary scraper 14, and when the tip of the rotary scraper 14 leaves the surface, the initial hanging suspension posture is obtained. The scum removing device is configured to return .

本構成によれば、固定掻き板１３の表面に付着したスカム３は回転式掻き板１４により掻き落とされる。このため掻き落とされたスカム３が固定掻き板１３と無端ベルト５との当接部付近に堆積することが防止される。更に、その回転式掻き板１４に付着したスカム３も剥ぎ落とし板１５により剥ぎ落とされる。従って、スカム３の粘性が高くて流動性が低い場合であっても、スカム３が固定掻き板１３と無端ベルト５との当接部付近や固定掻き板１３に付着したり堆積したりすることが防止される効果を奏する。   According to this configuration, the scum 3 adhering to the surface of the fixed scraper 13 is scraped off by the rotary scraper 14. Therefore, the scraped scum 3 is prevented from accumulating near the contact portion between the fixed scraper 13 and the endless belt 5. Further, the scum 3 adhering to the rotary scraping plate 14 is also peeled off by the stripping plate 15. Therefore, even when the scum 3 has a high viscosity and low fluidity, the scum 3 adheres to or accumulates in the vicinity of the contact portion between the fixed scraper 13 and the endless belt 5 or the fixed scraper 13. This has the effect of preventing

また、請求項２に記載の発明は、請求項１に記載のスカム除去装置において、剥ぎ落とし板１５は回転式掻き板１４の回転方向とは逆回転方向に押圧バネ３１にて付勢し、垂下位置にて止まるように構成してあることを特徴とするスカム除去装置である。 The invention according to claim 2 is the scum removing device according to claim 1, wherein the stripping plate 15 is urged by the pressing spring 31 in the direction opposite to the rotation direction of the rotary scraping plate 14 . A scum removing device configured to stop at a suspended position .

本構成によれば、剥ぎ落とし板１５によるスカム３の剥ぎ落とし力が増加し、回転式掻き板１４に付着したスカム３が効率良く除去される。   According to this configuration, the peeling force of the scum 3 by the peeling plate 15 increases, and the scum 3 attached to the rotary scraper 14 is efficiently removed.

また、請求項３に記載の発明は、請求項１又は２に記載のスカム除去装置において、前記剥ぎ落とし板１５を無くした構成のスカム除去装置である。 The invention according to claim 3 is the scum removing device according to claim 1 or 2, wherein the stripping plate 15 is eliminated.

スカム３の粘性がそれ程高くない場合には回転式掻き板１４へのスカム３の付着量は少ない。従って、このような構成にしてもスカム３が固定掻き板１３と無端ベルト５との当接部付近や固定掻き板１３に付着したり堆積したりすることを防止できる。   When the viscosity of the scum 3 is not so high, the amount of the scum 3 attached to the rotary scraper 14 is small. Therefore, even if it is such a structure, it can prevent that the scum 3 adheres to the contact part of the fixed scraping board 13 and the endless belt 5, and the fixed scraping board 13 or deposits.

以下、本発明に係るスカム除去装置の好ましい実施形態を図面に基づいて説明する。図１は回収された切削液２の表面に浮遊するスカム３を除去するスカム除去装置１の正面図、図２は無端ベルト５に付着したスカム３を掻き落とす掻き落とし機構部分６の斜視図である。但し、図２では各機構部品を支持するフレーム部分は省略してある。   Hereinafter, preferred embodiments of a scum removing device according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of a scum removing device 1 that removes a scum 3 floating on the surface of the collected cutting fluid 2, and FIG. is there. However, in FIG. 2, a frame portion that supports each mechanism component is omitted.

切削工具や被切削物を冷却、潤滑した後に回収された切削液２は、液体タンク８に貯留される。回収された切削液２には潤滑油、切り粉、研磨粉等の不純物が混入しており、潤滑油は比重差により浮上する。浮上した潤滑油には切り粉、研磨粉等も含まれ、切削液２の液面にスカム３となって浮遊する。   The cutting fluid 2 collected after cooling and lubricating the cutting tool or workpiece is stored in the liquid tank 8. The recovered cutting fluid 2 is mixed with impurities such as lubricating oil, cutting powder and polishing powder, and the lubricating oil floats due to the difference in specific gravity. The floated lubricating oil includes cutting powder, polishing powder, and the like, and floats as a scum 3 on the surface of the cutting fluid 2.

スカム除去装置１は、本体フレーム４を液体タンク８の上方に適宜支持手段により固定して取り付けられている。本体フレーム４の上部には掻き落とし機構部分６が収納され、下部には従動ローラ１０が切削液２に浸漬した状態で取り付けられている。掻き落とし機構部分６は、駆動ローラ１２、固定掻き板１３、回転式掻き板１４、剥ぎ落とし板１５、減速機付駆動モータ１６、２個の歯車１８、１９を備えて構成されている。駆動ローラ１２と従動ローラ１０はリブ付ローラで、両者の間には無端ベルト５が懸け渡されている。   The scum removing device 1 is attached by fixing the main body frame 4 above the liquid tank 8 by appropriate supporting means. A scraping mechanism portion 6 is accommodated in the upper portion of the main body frame 4, and a driven roller 10 is attached to the lower portion in a state of being immersed in the cutting fluid 2. The scraping mechanism portion 6 includes a driving roller 12, a fixed scraping plate 13, a rotary scraping plate 14, a scraping plate 15, a drive motor 16 with a reduction gear, and two gears 18 and 19. The driving roller 12 and the driven roller 10 are ribbed rollers, and an endless belt 5 is suspended between them.

減速機付駆動モータ１６、歯車１８、駆動ローラ１２は、回転軸２２によって繋がれている。減速機付駆動モータ１６が図中の矢印で示す反時計方向に回転すると、駆動ローラ１２も同方向に回転して無端ベルト５を矢印で示す方向に周動させる。従動ローラ１０は無端ベルト５の周動に従動して回転する。   The drive motor 16 with a reduction gear, the gear 18 and the drive roller 12 are connected by a rotating shaft 22. When the drive motor 16 with a speed reducer rotates in the counterclockwise direction indicated by the arrow in the drawing, the drive roller 12 also rotates in the same direction, causing the endless belt 5 to move in the direction indicated by the arrow. The driven roller 10 rotates following the circumferential movement of the endless belt 5.

無端ベルト５が液中から液面上に上昇する際に、切削液２の表面に浮遊するスカム３が無端ベルト５の表面に付着する。付着したスカム３は無端ベルト５の周動により上方に運ばれていき、駆動ローラ１２で反転されられて下降軌道に移る。無端ベルト５が駆動ローラ１２から離れて下降軌道に移った直後の位置には、固定掻き板１３が取り付けてある。   When the endless belt 5 rises from the liquid to the liquid level, the scum 3 floating on the surface of the cutting fluid 2 adheres to the surface of the endless belt 5. The adhering scum 3 is carried upward by the circumferential movement of the endless belt 5, is reversed by the driving roller 12, and moves to the descending track. A fixed scraper 13 is attached at a position immediately after the endless belt 5 is moved away from the driving roller 12 and moved to the descending track.

固定掻き板１３は、一辺が無端ベルト５の幅にほぼ等しい長方形板を駆動ローラ１２の回転軸２２に直角な断面が円弧状になるように曲げ加工したものである。固定掻き板１３は、その直線状の一辺の板端部を無端ベルト５に斜め上向きに押し付けた状態で取り付けてある。これにより無端ベルト５に付着したスカム３は、無端ベルト５と固定掻き板１３の板端部との当接部を通過する際に掻き取られ、固定掻き板１３上に移る。スカム３の流動性が高い場合、スカム３は固定掻き板１３上を流下して樋２４に落下してスカム貯留タンク２５に回収される。   The fixed scraper 13 is formed by bending a rectangular plate having one side substantially equal to the width of the endless belt 5 so that a cross section perpendicular to the rotation shaft 22 of the drive roller 12 has an arc shape. The fixed scraper 13 is attached in such a state that the end portion of the straight side is pressed obliquely upward onto the endless belt 5. As a result, the scum 3 adhering to the endless belt 5 is scraped off when passing through the contact portion between the endless belt 5 and the plate end portion of the fixed scraper plate 13, and moves onto the fixed scraper plate 13. When the fluidity of the scum 3 is high, the scum 3 flows down on the fixed scraping plate 13, falls on the trough 24, and is collected in the scum storage tank 25.

ところがスカム３の粘性が高くて流動性が低い場合には、スカム３は固定掻き板１３上を流下せず、固定掻き板１３と無端ベルト５の当接部付近に堆積する。堆積したスカム３は、固定掻き板１３によるスカム３の掻き取り効率を低下させ、やがて装置を機能停止に陥らせる。   However, when the viscosity of the scum 3 is high and the fluidity is low, the scum 3 does not flow down on the fixed scraping plate 13 but accumulates in the vicinity of the contact portion between the fixed scraping plate 13 and the endless belt 5. The accumulated scum 3 reduces the scraping efficiency of the scum 3 by the fixed scraper 13 and eventually causes the apparatus to stop functioning.

こうしたスカム３の堆積を無くすため本実施形態のスカム除去装置１では、固定掻き板１３に付着したスカム３を掻き取って下流の樋２４に確実に落下させるための回転式掻き板１４を取り付けている。回転式掻き板１４は図１、図２に示すように、駆動ローラ１２の回転軸２２に平行な回転軸２７に取り付けてある。その回転軸２７は、減速機付駆動モータ１６の回転軸２２に取り付けた歯車１８に歯合する歯車１９により回転駆動される。   In order to eliminate such accumulation of the scum 3, the scum removing device 1 of the present embodiment is provided with a rotary scraping plate 14 for scraping the scum 3 adhering to the fixed scraping plate 13 and surely dropping it to the downstream cage 24. Yes. As shown in FIGS. 1 and 2, the rotary scraper 14 is attached to a rotary shaft 27 parallel to the rotary shaft 22 of the drive roller 12. The rotary shaft 27 is rotationally driven by a gear 19 that meshes with a gear 18 attached to the rotary shaft 22 of the drive motor 16 with a reduction gear.

回転式掻き板１４は、駆動ローラ１２とは反対の図中時計回りに駆動される。回転式掻き板１４のサイズと回転軸２７の配置は、回転式掻き板１４の外周側端部が固定掻き板１３の円弧状表面に沿って回転移動するように調整されている。この回転式掻き板１４の回転によって固定掻き板１３に付着したスカム３は掻き取られ、押しやられて下流側の樋２４に落下する。従って、スカム３の粘性が高い場合でも、固定掻き板１３と無端ベルト５の当接部付近や固定掻き板１３上にスカム３が堆積したり、付着したりすることが防止される。   The rotary scraper 14 is driven in the clockwise direction in the figure opposite to the drive roller 12. The size of the rotary scraper 14 and the arrangement of the rotary shaft 27 are adjusted so that the outer peripheral end of the rotary scraper 14 rotates along the arcuate surface of the fixed scraper 13. The scum 3 adhering to the fixed scraper 13 by the rotation of the rotary scraper 14 is scraped off, pushed down, and dropped to the flange 24 on the downstream side. Therefore, even when the viscosity of the scum 3 is high, the scum 3 is prevented from being deposited or adhered to the vicinity of the contact portion between the fixed scraper 13 and the endless belt 5 or on the fixed scraper 13.

回転式掻き板１４をこのように設けた場合、今度は回転式掻き板１４により掻き取られたスカム３の一部が落下せずに回転式掻き板１４に付着したまま再び固定掻き板１３と無端ベルト５の当接部付近に戻ることが考えられる。そこで本実施形態のスカム除去装置１では、回転式掻き板１４に付着して落下しなかったスカム３を取り除くための剥ぎ落とし板１５を更に設けている。   When the rotary scraper 14 is provided in this way, a part of the scum 3 scraped by the rotary scraper 14 is not dropped and remains attached to the rotary scraper 14 again. It may be possible to return to the vicinity of the contact portion of the endless belt 5. Therefore, in the scum removing device 1 of the present embodiment, a stripping plate 15 is further provided for removing the scum 3 that has adhered to the rotary scraper 14 and did not fall.

剥ぎ落とし板１５は、図１、図２に示すように回転式掻き板１４の上昇回転軌道側の位置において、駆動ローラ１２の回転軸２２に平行な軸回りに揺動可能に蝶番３０により吊持されている。垂下した状態では、剥ぎ落とし板１５の下端が回転式掻き板１４の回転中心より下方で、回転式掻き板１４の上昇回転軌道中に位置するように形状と配置が調整してある。   As shown in FIGS. 1 and 2, the stripping plate 15 is suspended by a hinge 30 so as to be swingable about an axis parallel to the rotation shaft 22 of the drive roller 12 at a position on the ascending rotation orbit side of the rotary scraping plate 14. Is held. In the suspended state, the shape and arrangement are adjusted so that the lower end of the scraping plate 15 is located below the rotation center of the rotary scraper 14 and is located in the ascending rotation path of the rotary scraper 14.

図３は、回転式掻き板１４の回転に伴う剥ぎ落とし板１５の動きを時系列で示したものである。回転式掻き板１４は図３の（１）に示すように、固定掻き板１３の表面に付着したスカム３を掻き取りながら回転する。回転式掻き板１４が回転して図３の（２）に示す位置にくると、その表面（掻き面）に剥ぎ落とし板１５の下端が斜めに当接する。回転式掻き板１４が回転を継続すると、剥ぎ落とし板１５は下端を回転式掻き板１４の掻き面に押されて回転式掻き板１４の軌道の外方向に揺動する。揺動の際、剥ぎ落とし板１５の下端は回転式掻き板１４の掻き面を摺動し、掻き面に付着したスカム３を剥ぎ取って回転式掻き板１４の端の方に押しやる。剥ぎ落とし板１５の下端が回転式掻き板１４の先端にまで摺動すると、剥ぎ取られたスカム３は落下する（図３の（３）参照）。その後も回転式掻き板１４は剥ぎ落とし板１５の裏面を摺動しながら（図３の（４）参照）回転し、固定掻き板１３側に戻る。   FIG. 3 shows the movement of the stripping plate 15 accompanying the rotation of the rotary scraper 14 in time series. As shown in FIG. 3 (1), the rotary scraper 14 rotates while scraping off the scum 3 adhering to the surface of the fixed scraper 13. When the rotary scraper 14 rotates and reaches the position shown in (2) of FIG. 3, the lower end of the scraping plate 15 abuts obliquely on the surface (scratch surface). When the rotary scraping plate 14 continues to rotate, the scraping plate 15 is pushed by the scraping surface of the rotary scraping plate 14 at the lower end and swings outward in the orbit of the rotary scraping plate 14. When swinging, the lower end of the scraping plate 15 slides on the scraping surface of the rotary scraping plate 14, and the scum 3 attached to the scraping surface is stripped off and pushed toward the end of the rotary scraping plate 14. When the lower end of the peeling plate 15 slides to the tip of the rotary scraping plate 14, the peeled scum 3 falls (see (3) in FIG. 3). Thereafter, the rotary scraper 14 rotates while sliding on the back surface of the stripping plate 15 (see (4) in FIG. 3), and returns to the fixed scraper 13 side.

この場合、回転式掻き板１４に付着したスカム３の剥ぎ取り力を強くするため、剥ぎ落とし板１５には、その下端を回転式掻き板１４の回転中心に向かわせる方向に押圧バネ３１にて付勢しておくとよい（図４参照）。但し、回転式掻き板１４に当接していない状態では、垂直に垂下した位置で止まるようにストッパを設けておく。また、回転式掻き板１４にスカム３が多量に付着している場合も考慮して、剥ぎ落とし板１５の先端部分を図３中に示すように外向き直角に折り曲げておくとよい。   In this case, in order to increase the peeling force of the scum 3 attached to the rotary scraping plate 14, the stripping plate 15 is pressed by a pressing spring 31 in a direction in which the lower end thereof is directed to the rotation center of the rotary scraping plate 14. It is good to energize (refer to FIG. 4). However, a stopper is provided so as to stop at a position where it hangs vertically when it is not in contact with the rotary scraper 14. In consideration of the case where a large amount of the scum 3 is attached to the rotary scraper 14, it is preferable to bend the tip of the stripping plate 15 at a right angle outward as shown in FIG.

以上説明したように本実施形態のスカム除去装置１では、固定掻き板１３の断面を円弧状にして取り付け、その掻き面に付着したスカム３を回転式掻き板１４で掻き落とすように構成してある。これにより固定掻き板１３と無端ベルト５との当接部付近や固定掻き板１３上へのスカム３の堆積が防止される。更に、その回転式掻き板１４に付着したスカム３も、剥ぎ落とし板１５により剥ぎ落とされるように構成してある。こうしたことしら、スカム３の粘性が高く流動性が低い場合であっても、固定掻き板１３と無端ベルト５との当接部付近や固定掻き板１３にスカム３が付着したり堆積したりすることが防止される効果を奏する。   As described above, in the scum removing device 1 of the present embodiment, the fixed scraper 13 is attached with the cross section of the arc shaped like an arc, and the scum 3 adhering to the scraping surface is scraped off by the rotary scraper 14. is there. Thereby, the accumulation of the scum 3 near the contact portion between the fixed scraper 13 and the endless belt 5 or on the fixed scraper 13 is prevented. Further, the scum 3 attached to the rotary scraper 14 is also configured to be stripped off by the stripping plate 15. For this reason, even when the scum 3 is highly viscous and low in fluidity, the scum 3 adheres to or accumulates in the vicinity of the contact portion between the fixed scraper 13 and the endless belt 5 or the fixed scraper 13. The effect is prevented.

（変形実施形態）
前記実施形態では回転式掻き板１４に付着したスカム３を剥ぎ落とす剥ぎ落とし板１５を取り付けたが、スカム３の粘性がそれ程高くない場合には回転式掻き板１４へのスカム３の付着量は少ないので剥ぎ落とし板１５を省略した構成にしてもよい。図５は、そのような構成にしたスカム除去装置１ａの正面図である。 (Modified embodiment)
In the above embodiment, the scraping plate 15 for stripping off the scum 3 attached to the rotary scraper 14 is attached. However, when the viscosity of the scum 3 is not so high, the amount of the scum 3 attached to the rotary scraper 14 is as follows. Since there are few, you may make it the structure which abbreviate | omitted the stripping board 15. FIG. 5 is a front view of the scum removing device 1a having such a configuration.

また、本発明のスカム除去装置は、工作機械に使用して回収された水溶性切削液の表面に浮遊するスカムの除去だけでなく、水面に浮かぶ油や粘着性のあるスカムの分離、回収に広く適用できることは言うまでもない。   Further, the scum removing device of the present invention is not only used for removing scum floating on the surface of the water-soluble cutting fluid collected using a machine tool, but also for separating and collecting oil floating on the water surface and sticky scum. Needless to say, it can be widely applied.

本発明に係るスカム除去装置１の正面図である。It is a front view of the scum removal apparatus 1 which concerns on this invention. 掻き落とし機構部分６の斜視図である。It is a perspective view of the scraping mechanism part 6. FIG. 回転式掻き板１４と剥ぎ落とし板１５の動作説明図である。FIG. 6 is an operation explanatory view of the rotary scraper 14 and the stripping plate 15. 押圧バネ３１による剥ぎ落とし板１５の付勢方法の例である。It is an example of the urging | biasing method of the peeling board 15 by the press spring 31. FIG. スカム除去装置の変形実施形態の正面図である。It is a front view of modification embodiment of a scum removal apparatus. 従来技術に係るスカム除去装置の正面図である。It is a front view of the scum removal apparatus which concerns on a prior art.

符号の説明Explanation of symbols

図面中、１、１ａはスカム除去装置、３はスカム、５は無端ベルト、８は液体タンク、１０は従動ローラ、１２は駆動ローラ、１３は固定掻き板、１４は回転式掻き板、１５は剥ぎ落とし板、２２は回転軸、２４は樋、３０は蝶番、３１は押圧バネを示す。   In the drawings, 1, 1a is a scum removing device, 3 is a scum, 5 is an endless belt, 8 is a liquid tank, 10 is a driven roller, 12 is a driving roller, 13 is a fixed scraper, 14 is a rotary scraper, 15 is A stripping plate, 22 is a rotating shaft, 24 is a hook, 30 is a hinge, and 31 is a pressing spring.

Claims (3)

液体タンク（８）の上方に配設した駆動ローラ（１２）と液中の従動ローラ（１０）との間に無端ベルト（５）を懸け渡して回転させ、無端ベルトの表面に付着して上昇したスカム（３）を無端ベルトの下降軌道側に配設した固定掻き板（１３）にて掻き取り除去するスカム除去装置おいて、
前記固定掻き板は前記駆動ローラの回転軸に垂直な断面が円弧の一部をなす形状に形成されて一方の円弧板端部を前記無端ベルトの表面に当接させてスカムを掻き取るように配設してあり、
掻き取られて固定掻き板に付着したスカムは前記駆動ローラの回転軸（２０）に平行な軸回りに駆動ローラとは逆方向に回転してその先端板端部を固定掻き板の円弧状表面に沿って移動させる回転式掻き板により掻き落とすように構成してあり、
前記回転式掻き板の上昇回転軌道側には該回転式掻き板の回転軸（２７）に平行で回転式掻き板の先端軌跡より上方に配置した軸回りに揺動可能に垂下吊持され、吊持された下端は回転式掻き板の回転軸より下方に位置する大きさの剥ぎ落とし板（１５）が更に配設してあり、
該剥ぎ落とし板の下端は前記回転式掻き板の上昇回転時に該回転式掻き板のスカム掻き面に当接し、当接した下端が回転式掻き板の回転とともに回転式掻き板のスカム掻き面をその先端方向に向けて摺動して回転式掻き板に付着したスカムをスカム掻き面の先端方向に掻き寄せて遂には回転式掻き板の先端部から落下させ、回転式掻き板の先端が剥ぎ落とし板に当接した状態になった後は、回転式掻き板はその先端を剥ぎ落とし板の回転式掻き板側の面に当接させながら回転してやがて剥ぎ落とし板から離れて再び固定掻き板に付着したスカムを掻き落とす動作位置に復帰し、前記剥ぎ落とし板は回転式掻き板により回転式掻き板側の面を支えられた状態で揺動して回転式掻き板の先端が該面を離れたときに最初の垂下吊持姿勢に復帰するように構成してあることを特徴とするスカム除去装置。 The endless belt (5) is spanned between the driving roller (12) disposed above the liquid tank (8) and the driven roller (10) in the liquid, and rotated to adhere to the surface of the endless belt. In the scum removing device for scraping and removing the scum (3) by the fixed scraper (13) disposed on the descending track side of the endless belt,
The fixed scraper is formed in a shape in which a cross section perpendicular to the rotation axis of the drive roller forms a part of an arc, and scrapes the scum by bringing one arc plate end into contact with the surface of the endless belt. Arranged,
The scum scraped off and adhered to the fixed scraper rotates around the axis parallel to the rotation axis (20) of the drive roller in the direction opposite to the drive roller, and the end of the end plate is arcuate surface of the fixed scraper. It is configured to be scraped off by a rotary scraper that moves along
The rotary scraper is suspended and suspended on the ascending rotation orbit side of the rotary scraper so as to be swingable around an axis disposed parallel to the rotary shaft (27) of the rotary scraper and above the tip locus of the rotary scraper, The suspended lower end is further provided with a stripping plate (15) having a size located below the rotation axis of the rotary scraper,
The lower end of the scraping plate comes into contact with the scum scraping surface of the rotary scraping plate when the rotary scraping plate is rotated upward, and the lower end that touches the scum scraping surface of the rotary scraping plate along with the rotation of the rotary scraping plate. The scum that slides in the direction of the tip and sticks to the rotary scraper is scraped toward the tip of the scum scraping surface and finally dropped from the tip of the rotary scraper, and the tip of the rotary scraper peels off. After coming into contact with the dropping plate, the rotary scraper rotates while keeping its tip abutting against the surface of the rotary scraper side of the stripping plate, and then it is separated from the stripping plate and fixed again. The scraping plate returns to the operating position where the scum adhering to the plate is scraped off, and the scraping plate swings with the rotary scraper supporting the surface on the rotary scraper side so that the tip of the rotary scraper is at the surface. I will return to the first hanging position when I leave Scum removing apparatus characterized by are configured to. 請求項１に記載のスカム除去装置において、前記剥ぎ落とし板は前記回転式掻き板の回転方向とは逆回転方向に押圧バネ（３１）にて付勢し、垂下位置にて止まるように構成してあることを特徴とするスカム除去装置。 2. The scum removing device according to claim 1, wherein the scraping plate is configured to be urged by a pressing spring (31) in a direction opposite to a rotation direction of the rotary scraper and to stop at a hanging position. scum removing apparatus, characterized in that are. 請求項１又は２に記載のスカム除去装置において、前記剥ぎ落とし板を無くした構成のスカム除去装置。 The scum removing device according to claim 1 or 2, wherein the stripping plate is eliminated.
JP2008107347A 2008-04-16 2008-04-16 Scum remover Expired - Fee Related JP4238281B1 (en)

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CN103922441B (en) * 2014-04-29 2015-08-19 安徽科技学院 Small synchronous belt oil-water separator for kitchen waste
JP6647044B2 (en) * 2016-01-06 2020-02-14 Dmg森精機株式会社 Chip conveyor

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