JP2014180713A

JP2014180713A - Filtering device

Info

Publication number: JP2014180713A
Application number: JP2013055962A
Authority: JP
Inventors: Kazumi Asada; 和美浅田; Shuichi Mogi; 秀一茂木
Original assignee: Mosnic Corp
Current assignee: Mosnic Corp
Priority date: 2013-03-19
Filing date: 2013-03-19
Publication date: 2014-09-29
Anticipated expiration: 2033-03-19
Also published as: JP5283243B1

Abstract

PROBLEM TO BE SOLVED: To provide a filtering device which is equipped with a magnet roller capable of efficiently removing chips from a machining liquid.SOLUTION: A magnet roller 4 includes a fixed shaft 40 located inside a chip collection tank 5, a plurality of magnet pieces 41 mounted on the outer peripheral surface of the fixed shaft 40, a non-magnetic rotary cover cylinder 43 covering the outer peripheral surface of a magnet rod 42 comprising the fixed shaft 40 and the plurality of magnet pieces 41, and driving means rotationally driving the rotary cover cylinder 43 around its axis. A first chip scraping member 8 abuts on the outer peripheral surface of the rotary cover cylinder 43, and the magnetic force of a magnet piece 41A adjacent to the first chip scraping member 8 among the plurality of magnet pieces 41 is set smaller than that of other magnet pieces.

Description

本発明は、例えばマシニングセンターで使用された研削油、切削油などのように、切粉を含んだ機械加工用液から該切粉を取り除く濾過装置と同装置が備えるマグネットローラに関し、特に、機械加工用液中から切粉を効率よく取り除くことができるようにしたものである。 The present invention relates to a magnet roller provided in the same device as a filtering device for removing chips from a machining fluid containing chips, such as grinding oil and cutting oil used in machining centers, and in particular, machining. This makes it possible to efficiently remove chips from the working solution.

従来、マシニングセンターで使用された研削油、切削油など、切粉を含んだ機械加工用液を再利用するために、その機械加工用液中から切粉を取り除く手段として、濾過装置が使用される。この種の濾過装置としては、例えば、特許文献１に開示の濾過装置が知られている。 Conventionally, in order to reuse machining fluid containing chips, such as grinding oil and cutting oil used in machining centers, filtration devices are used as means for removing chips from the machining fluid. . As this type of filtration device, for example, a filtration device disclosed in Patent Document 1 is known.

特許文献１の濾過装置では、切粉搬送部材収容体（１）に切粉搬送部材（２）を収容するとともに投入口（３）と排出口（４）を設ける構成と、投入口（３）から投入した機械加工用液（使用済み切削油）中の切粉を前記切粉搬送部材（２）で排出口（４）まで搬送する構成と、前記切粉搬送部材収容体（１）から流入辺（１０）を通じて回転濾過ドラム収容体（５）に機械加工用液を流入させ、その回転濾過ドラム収容体（５）内で回転する濾過ドラム（６）によって機械加工用液を濾過する構成と、切粉搬送部材収容体（１）の底面に沈殿した切粉をスクレーパコンベア（１２）で掻き取る構成と、その掻き取った切粉を邪魔板（１１）から切粉搬送部材（２）の方向に送り出す構成と、を採用している。 In the filtering device of Patent Document 1, the chip conveying member (2) is accommodated in the chip conveying member container (1) and the inlet (3) and the outlet (4) are provided, and the inlet (3). Configured to convey the chips in the machining fluid (used cutting oil) supplied from the above to the discharge port (4) by the chip conveying member (2), and inflow from the chip conveying member container (1) A configuration in which a machining liquid is introduced into the rotary filtration drum container (5) through the side (10), and the machining liquid is filtered by the filtration drum (6) rotating in the rotary filtration drum container (5); The scraping conveyor (12) scrapes off the chips deposited on the bottom surface of the chip conveying member container (1), and the scraped scraps from the baffle plate (11) to the chip conveying member (2). The structure which sends out in the direction is adopted.

前記構成を採用した特許文献１の濾過装置では、投入口（３）から投入された機械加工用液中の切粉のうち、比較的重量のある切粉は、切粉搬送部材収容体（１）の底面に沈殿し、切粉搬送部材（２）によって排出口（４）まで搬送され、最終的に排出口（４）から外部へ排出される。 In the filtering device of Patent Document 1 adopting the above-described configuration, among the chips in the machining liquid charged from the inlet (3), the relatively heavy chips are the chip conveying member container (1). ), Is conveyed to the discharge port (4) by the chip conveying member (2), and finally discharged from the discharge port (4) to the outside.

しかしながら、この特許文献１の濾過装置によると、前記のように投入された機械加工用液中に浮遊している切粉（以下「浮遊切粉」という）が存在する場合に、そのような浮遊切粉が回転濾過ドラム収容体（５）内に流入することは避けられず、流入した浮遊切粉が回転濾過ドラム（６）外周面のフィルタを通過することで、当該フィルタを通過した後の機械加工用液の中に当該フィルタで除去できなかった浮遊切粉が含まれている等、機械加工溶液中から切粉を十分に取り除くことができないという問題点がある。 However, according to the filtration device of Patent Document 1, when floating chips (hereinafter referred to as “floating chips”) are present in the machining liquid charged as described above, such floating It is inevitable that the chips flow into the rotary filtration drum container (5), and the inflowing floating chips pass through the filter on the outer peripheral surface of the rotary filtration drum (6), so that There is a problem that chips cannot be sufficiently removed from the machining solution, for example, floating chips that cannot be removed by the filter are included in the machining liquid.

なお、以上の説明でカッコ内の符号は、特許文献１で用いられている符号である。 In the above description, the reference numerals in parentheses are those used in Patent Document 1.

特開２０１２−１４３８３３号公報JP 2012-143833 A

本発明は前記問題点を解決するためになされたものであり、その目的は、機械加工用液中から切粉を効率よく取り除くことができるマグネットローラとこれを備えた濾過装置を提供することである。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a magnet roller capable of efficiently removing chips from machining liquid and a filtering device including the magnet roller. is there.

前記目的を達成するために、本発明に係るマグネットローラは、切粉を含んだ機械加工用液から該切粉を取り除く濾過装置において、その機械加工用液が流入する切粉捕集槽内に収容されるとともに、その切粉捕集槽内の機械加工用液から切粉を磁力で取り除く手段として用いられるマグネットローラであって、前記切粉捕集槽内に位置する固定軸と、前記固定軸の外周面に取付けた複数のマグネット片と、該固定軸及び前記複数のマグネット片からなるマグネット棒の外周面を覆う非磁性の回転被覆筒と、前記回転被覆筒をその軸心周りに回転駆動する駆動手段と、を備え、前記回転被覆筒の外周面に切粉掻取部材が当接する構造になっているとともに、前記複数のマグネット片のうち前記切粉掻取部材に隣接するマグネット片は、それ以外のマグネット片に比べて磁力が弱くなるように設定してあることを特徴とするものである。 In order to achieve the above-mentioned object, the magnet roller according to the present invention is a filtration device for removing chips from machining fluid containing chips, and into a chip collection tank into which the machining fluid flows. A magnet roller that is housed and used as means for removing chips from the machining fluid in the chip collection tank by magnetic force, the fixed shaft located in the chip collection tank, and the fixed A plurality of magnet pieces attached to the outer peripheral surface of the shaft, a non-magnetic rotating coated cylinder covering the outer peripheral surface of the magnet rod made of the fixed shaft and the plurality of magnet pieces, and the rotating coated cylinder rotating about its axis A magnet piece adjacent to the chip scraping member among the plurality of magnet pieces, and having a structure in which a chip scraping member abuts on an outer peripheral surface of the rotating sheath cylinder. More than that It is characterized in that is set so the magnetic force is weaker than that of the magnet piece.

本発明に係る濾過装置は、切粉を含んだ機械加工用液から該切粉を取り除く濾過装置であって、前記切粉の搬送路と、前記搬送路に設けた切粉搬送部材と、前記搬送路の横に並べて併設したマグネットローラと、前記マグネットローラを収容する切粉捕集槽と、前記マグネットローラの外周下部面と対向する液回収ケースと、前記マグネットローラと前記液回収ケースとの隙間からなる隙間流路と、前記マグネットローラの外周上部面付近に当接する第１の切粉掻取部材と、前記搬送路から前記切粉捕集槽に連通する連通部と、前記連通部に設置した邪魔板と、前記切粉捕集槽に設けた第２の切粉掻取部材と、を具備し、前記搬送路は、その上流側に設けた機械加工用液の投入口と、その下流側に設けた切粉の排出口と、を備え、前記切粉搬送部材は、前記投入口から前記排出口に向けて機械加工用液中の切粉を搬送し、前記マグネットローラは、前記搬送路での切粉の搬送方向と並行な配置形態で前記切粉捕集槽内に位置する固定軸と、前記固定軸の外周面に取付けた複数のマグネット片と、前記固定軸及び前記複数のマグネット片からなるマグネット棒の外周面を覆う非磁性の回転被覆筒と、前記回転被覆筒をその軸心周りに回転駆動する駆動手段と、を備え、その回転被覆筒の外周面に前記第１の切粉掻取部材が当接する構造になっているとともに、前記複数のマグネット片のうち前記第１の切粉掻取部材に隣接するマグネット片は、それ以外のマグネット片に比べて磁力が弱くなるように設定してあり、前記切粉捕集槽は、前記連通部付近において前記搬送路の側壁から前記マグネットローラの方向に向かって傾斜した斜面と、この斜面に連続する底面とを備えるとともに、その底面及び斜面と前記液回収ケースの外面との間に、前記第２の切粉掻取部材の移動を可能とする隙間部を有し、前記隙間流路は、前記液回収ケースの端部側を流入口として前記機械加工用液が流入する構造になっており、前記液回収ケースは、前記マグネットローラの外周下部面と対向する位置で前記隙間流路に開口している開口部と、この開口部から液回収ケース内部に流入した機械加工用液を外部へ排出するための機械加工用液の排出口と、を有し、前記邪魔板は、その幅が前記連通部の幅より狭く、その形状が前記切粉捕集槽の斜面から前記連通部を抜けて前記搬送路上に突出した形状になっていて、かつ、前記連通部の両側のうち前記投入口より遠い一方側に片寄せて設置されることにより、その設置範囲内では前記搬送路から前記連通部を介する前記切粉捕集槽への機械加工用液の流入を阻止し、その設置以外の範囲は流入口として前記流入を許容する手段であり、前記第２の切粉掻取部材は、前記連通部に向かって前記切粉捕集槽の前記隙間部を移動することにより、前記切粉捕集槽の底面や斜面から切粉を掻き取り、掻き取った切粉を前記邪魔板から前記搬送路へ送り出す手段として機能することを特徴とする。 The filtration device according to the present invention is a filtration device that removes the chips from the machining fluid containing chips, and includes a conveying path for the chips, a chip conveying member provided in the conveying path, A magnet roller arranged side by side along the conveyance path, a chip collection tank for housing the magnet roller, a liquid recovery case facing the outer peripheral lower surface of the magnet roller, and the magnet roller and the liquid recovery case A gap channel formed of a gap, a first chip scraping member that is in contact with the vicinity of the outer peripheral upper surface of the magnet roller, a communication part that communicates from the transport path to the chip collection tank, and a communication part. An installed baffle plate and a second chip scraping member provided in the chip collection tank, and the conveying path is provided with an inlet for machining liquid provided on the upstream side thereof, A chip discharge port provided on the downstream side, and the chip carrier The member conveys the chips in the machining liquid from the inlet to the outlet, and the magnet roller captures the chips in an arrangement form parallel to the chip conveying direction in the conveying path. A fixed shaft located in the collection tank, a plurality of magnet pieces attached to the outer peripheral surface of the fixed shaft, and a non-magnetic rotation-coated cylinder covering the outer peripheral surface of the magnet rod composed of the fixed shaft and the plurality of magnet pieces; Driving means for rotating the rotating coated cylinder around its axis, wherein the first chip scraping member is in contact with the outer peripheral surface of the rotating coated cylinder, and the plurality Among the magnet pieces, the magnet piece adjacent to the first chip scraping member is set so that the magnetic force is weaker than that of the other magnet pieces, and the chip collection tank is connected to the communication piece. Near the side of the transfer path The second chip scraping member is moved between the bottom surface and the slope and the outer surface of the liquid recovery case, and a slope inclined toward the magnet roller and a bottom surface continuous to the slope. The gap flow path has a structure in which the machining liquid flows in with the end side of the liquid recovery case as an inlet, and the liquid recovery case includes the magnet An opening opening in the gap flow path at a position facing the lower peripheral surface of the roller, and a machining liquid for discharging the machining liquid flowing into the liquid recovery case from the opening to the outside The baffle plate is narrower than the communication portion, and the shape of the baffle plate protrudes from the slope of the chip collection tank through the communication portion onto the conveyance path. And on both sides of the communication part That is, by being shifted to one side far from the charging port, in the installation range, the inflow of the machining liquid from the transport path to the chip collection tank via the communication portion is prevented, The range other than the installation is a means for allowing the inflow as an inflow port, and the second chip scraping member is moved by moving the gap portion of the chip collection tank toward the communication portion. The chip functions as a means for scraping off chips from the bottom surface or slope of the chip collecting tank and sending the scraped chips from the baffle plate to the transport path.

前記本発明に係る濾過装置において、前記第２の切粉掻取部材は、前記マグネットローラの外周を一回りする周回軌道に乗って、前記切粉捕集槽の前記隙間部を移動し、前記切粉捕集槽の底面と前記液回収ケースは、前記第２の切粉掻取部材の周回軌道に合わせて円弧状に形成したことを特徴としてもよい。 In the filtration device according to the present invention, the second chip scraping member rides on a circular orbit that goes around the outer circumference of the magnet roller, moves the gap portion of the chip collection tank, The bottom surface of the chip collection tank and the liquid recovery case may be formed in an arc shape in accordance with the orbit of the second chip scraping member.

また、前記本発明に係る濾過装置において、前記濾過装置は、更に、前記流入口から前記切粉捕集槽に流入した機械加工用液中の切粉を磁力で前記切粉捕集槽の底面や斜面に定着させる手段として、前記切粉捕集槽の外壁面に壁面マグネットを備えたことを特徴としてもよい。 Further, in the filtration device according to the present invention, the filtration device further includes a bottom surface of the chip collection tank for the chips in the machining liquid flowing into the chip collection tank from the inlet. As a means for fixing to the slope, a wall magnet may be provided on the outer wall surface of the chip collection tank.

更に、前記本発明に係る濾過装置において、前記流入口の周辺は、前記壁面マグネットが存在しないマグネット不存在部として構成することにより、壁面マグネットの磁力で機械加工用液中の切粉が切粉捕集槽の斜面上縁付近に定着する現象を抑制してあることを特徴としてもよい。 Furthermore, in the filtration device according to the present invention, the periphery of the inlet is configured as a magnet-free portion where the wall magnet does not exist, so that the chips in the machining liquid are cut by the magnetic force of the wall magnet. It may be characterized in that the phenomenon of fixing near the upper edge of the slope of the collection tank is suppressed.

本発明にあっては、前記の通り、切粉捕集槽内の機械加工用液から切粉を磁力で取り除く手段としてマグネットローラを採用するとともに、そのマグネットローラの具体的な構成として、固定軸の外周面に取付けた複数のマグネット片のうち切粉掻取部材に隣接するマグネット片は、それ以外のマグネット片に比べて磁力が弱くなるように設定した。このため、切粉掻取部材の周辺ではマグネットローラの磁力が弱まっていることから、切粉掻取部材付近での切粉の戻り現象（具体的には、マグネットローラを構成する回転被覆筒の外周面から切粉掻取部材によって掻き取った切粉が当該マグネットローラの磁力によって回転被覆筒の外周面に吸い寄せられて戻る現象）を効果的に防止でき、機械加工用液中から切粉を効率よく取り除くことができるマグネットローラとこれを備えた濾過装置を提供し得る。 In the present invention, as described above, a magnet roller is employed as means for removing the chips from the machining fluid in the chip collection tank by magnetic force, and a specific configuration of the magnet roller includes a fixed shaft. Among the plurality of magnet pieces attached to the outer peripheral surface, the magnet piece adjacent to the chip scraping member was set so that the magnetic force was weaker than that of the other magnet pieces. For this reason, since the magnetic force of the magnet roller is weak in the vicinity of the chip cleaning member, the return phenomenon of the chip in the vicinity of the chip cleaning member (specifically, the rotating coated cylinder constituting the magnet roller) The phenomenon that the chip scraped off from the outer peripheral surface by the chip scraping member is attracted and returned to the outer peripheral surface of the rotating coated cylinder by the magnetic force of the magnet roller can be effectively prevented. It is possible to provide a magnet roller that can be removed efficiently and a filtration device including the magnet roller.

本発明を適用した濾過装置を正面から見た断面図。Sectional drawing which looked at the filtration apparatus to which this invention is applied from the front. 図１の濾過装置を上面から見た断面図。Sectional drawing which looked at the filtration apparatus of FIG. 1 from the upper surface. 図１の濾過装置の上方から同装置のマグネットローラと切粉捕集槽を透かして壁面マグネットを見たときの壁面マグネット配置構成図。The wall surface magnet arrangement | positioning block diagram when seeing a wall surface magnet through the magnet roller and chip collection tank of the apparatus from the upper direction of the filtration apparatus of FIG. 図１のＣ−Ｃ線断面図。The CC sectional view taken on the line of FIG. 図１のＢ−Ｂ線断面図。FIG. 3 is a sectional view taken along line BB in FIG. 1. 図１のＡ−Ａ線断面図。AA sectional view taken on the line AA of FIG. 図１の濾過装置の上方から同装置のマグネットローラと切粉捕集槽を透かして壁面マグネットを見たときの他の壁面マグネット配置構成図。The other wall surface magnet arrangement | positioning block diagram when seeing a wall surface magnet through the magnet roller and chip collection tank of the apparatus from the upper direction of the filtration apparatus of FIG.

以下、本発明を実施するための最良の形態について、添付した図面を参照しながら詳細に説明する。 Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings.

《濾過装置の概要》
図１は、本発明を適用した濾過装置を正面から見た断面図、図２は、図１の濾過装置を上面から見た断面図、図３は、図１の濾過装置の上方から同装置のマグネットローラと切粉捕集槽を透かして壁面マグネットを見たときの壁面マグネット配置構成図、図４は、図１のＣ−Ｃ線断面図、図５は、図１のＢ−Ｂ線断面図、図６は、図１のＡ−Ａ線断面図である。なお、図２から図６では、連通部９を図示し難いので、格子状のハッチングにより連通部９の位置を示している。 <Outline of filtration device>
FIG. 1 is a cross-sectional view of a filter device to which the present invention is applied as viewed from the front, FIG. 2 is a cross-sectional view of the filter device of FIG. 1 as viewed from above, and FIG. Fig. 4 is a cross-sectional view taken along the line CC of Fig. 1 and Fig. 5 is a line BB of Fig. 1 when the wall magnet is viewed through the magnet roller and the chip collecting tank. FIG. 6 is a cross-sectional view taken along line AA in FIG. In FIGS. 2 to 6, since the communication portion 9 is difficult to show, the position of the communication portion 9 is shown by lattice-like hatching.

図１の濾過装置１は、切粉（磁性体のもの）を含んだ機械加工用液から該切粉を取り除く濾過装置であって、その具体的な装置構成として、切粉の搬送路２と、搬送路２に設けた切粉搬送部材３と、図２のように搬送路２の横に並べて併設したマグネットローラ４と、図４及び図５に示したように、マグネットローラ４を収容する切粉捕集槽５と、マグネットローラ４の外周下部面と対向する液回収ケース６と、マグネットローラ４と液回収ケース６との隙間からなる隙間流路７と、マグネットローラ４の外周上部面付近に当接する第１の切粉掻取部材８と、搬送路２から切粉捕集槽５に連通する連通部９と、連通部９に設置した邪魔板１０と、切粉捕集槽５に設けた第２の切粉掻取部材１１と、切粉捕集槽５の外壁面に取り付けた壁面マグネット１２と、を具備している。なお、壁面マグネット１２は必要に応じて適宜省略することができる。 A filtration device 1 in FIG. 1 is a filtration device that removes chips from a machining fluid containing chips (of magnetic material). The chip conveying member 3 provided in the conveying path 2, the magnet roller 4 arranged side by side next to the conveying path 2 as shown in FIG. 2, and the magnet roller 4 as shown in FIGS. Chip collecting tank 5, liquid recovery case 6 facing the outer peripheral lower surface of the magnet roller 4, a gap flow path 7 formed by a gap between the magnet roller 4 and the liquid recovery case 6, and an outer peripheral upper surface of the magnet roller 4 A first chip scraping member 8 that contacts the vicinity, a communication portion 9 that communicates from the conveying path 2 to the chip collection tank 5, a baffle plate 10 installed in the communication section 9, and a chip collection tank 5 The second chip scraping member 11 provided on the wall and the wall mug attached to the outer wall surface of the chip collecting tank 5 And Tsu door 12, and a. The wall magnet 12 can be omitted as appropriate.

《搬送路２の詳細構成》
図４及び図５を参照すると、搬送路２は、切粉搬送部材３を収容可能な溝の形状になっていて、その上流側に設けた機械加工用液の投入口１３と、その下流側に設けた切粉の排出口１４とを備えている（図１参照）。投入口１３には使用済みの機械加工用液が投入される一方、排出口１４からは機械加工用液中の切粉が排出される。 << Detailed Configuration of the Transport Path 2 >>
Referring to FIGS. 4 and 5, the conveying path 2 has a groove shape that can accommodate the chip conveying member 3, and has a machining liquid inlet 13 provided on the upstream side thereof, and a downstream side thereof. And a chip discharge port 14 provided on the surface (see FIG. 1). While the used machining fluid is charged into the charging port 13, chips in the machining fluid are discharged from the discharging port 14.

また、搬送路２は、図２のように投入口１３付近から連通部９を含む範囲では図１のように傾斜のない非傾斜区間２Ａとして形成し、この非傾斜区間２Ａより下流の排出口１４までの範囲は図１のように上り坂の傾斜区間２Ｂとして形成してある。 Further, the conveyance path 2 is formed as a non-inclined section 2A having no inclination as shown in FIG. 1 in the range including the communicating portion 9 from the vicinity of the inlet 13 as shown in FIG. 2, and the discharge outlet downstream from the non-inclined section 2A The range up to 14 is formed as an uphill slope section 2B as shown in FIG.

《切粉搬送部材３の詳細構成》
切粉搬送部材３は、非磁性材料あるいは磁性材料で形成され、先に説明した搬送路２の非傾斜区間２Ａ及び傾斜区間２Ｂにおいて、投入口１３から排出口１４に向けて機械加工用液中の切粉を搬送する。このような切粉搬送部材３の具体例として、図１の濾過装置１では、スクリューコンベア３Ａを採用しているが、これに限定されることはなく、例えば公知のヒンジコンベア、スクレーパコンベア等を切粉搬送部材３として採用することも可能である。 << Detailed Configuration of Chip Conveying Member 3 >>
The chip conveying member 3 is formed of a nonmagnetic material or a magnetic material, and is in the machining fluid from the inlet 13 to the outlet 14 in the non-inclined section 2A and the inclined section 2B of the conveying path 2 described above. To transport chips. As a specific example of such a chip conveying member 3, the screw conveyor 3A is employed in the filtration device 1 of FIG. 1, but the present invention is not limited to this. For example, a known hinge conveyor, scraper conveyor, etc. It is also possible to employ as the chip conveying member 3.

図１の濾過装置１で採用したスクリューコンベア３Ａ（切粉搬送部材３）は、モータ等を動力源として回転駆動され、回転するスクリューによって切粉を搬送する。このスクリューコンベア３Ａは、具体的には、先に説明した搬送路２の非傾斜区間２Ａに対応して設置した非傾斜スクリューコンベア部３１と、同搬送路２の傾斜区間２Ｂに対応して設置した傾斜スクリューコンベア部３２とを備え、その非傾斜スクリューコンベア部３２と傾斜スクリューコンベア部３２と継ぎ手３３で連結した構造になっている。 The screw conveyor 3A (chip transporting member 3) employed in the filtration device 1 of FIG. 1 is rotationally driven using a motor or the like as a power source, and transports the chips with a rotating screw. Specifically, the screw conveyor 3A is installed corresponding to the non-inclined screw conveyor portion 31 installed corresponding to the non-inclined section 2A of the conveying path 2 described above and the inclined section 2B of the conveying path 2 The non-inclined screw conveyor part 32, the inclined screw conveyor part 32, and the joint 33 are connected.

そして、非傾斜スクリューコンベア部３１の回転力が継ぎ手３３を介して傾斜スクリューコンベア部３２に伝達されることにより、非傾斜スクリューコンベア部３１と傾斜スクリューコンベア部３２は連動して同期回転し、非傾斜スクリューコンベア部３１では、回転するスクリューにより、濾過装置１の設置面（図示省略）と略平行な方向に切粉を押し出す方式で搬送する。この一方、傾斜スクリューコンベア部３２では、同じく回転するスクリューにより、濾過装置１の設置面（図示省略）に対して斜め上方に切粉を押し上げる方式で搬送する。 Then, the rotational force of the non-inclined screw conveyor unit 31 is transmitted to the inclined screw conveyor unit 32 via the joint 33, so that the non-inclined screw conveyor unit 31 and the inclined screw conveyor unit 32 rotate in synchronization with each other. The inclined screw conveyor unit 31 conveys the chips by a method of extruding chips in a direction substantially parallel to the installation surface (not shown) of the filtration device 1 by a rotating screw. On the other hand, the inclined screw conveyor unit 32 conveys the chips in a manner that pushes the chips obliquely upward with respect to the installation surface (not shown) of the filtration device 1 by the same rotating screw.

《マグネットローラ４の詳細構成》
図４及び図５を参照すると、マグネットローラ４は、切粉捕集槽５内に位置する固定軸４０と、固定軸４０の外周面に取付けた複数のマグネット片４１と、その固定軸４０及び複数のマグネット片４１からなるマグネット棒４２の外周面を覆う非磁性の回転被覆筒４３と、回転被覆筒４３をその軸心周りに回転駆動する駆動手段４４（図６参照）と、を備え、かつ、その回転被覆筒４３の外周面に前記第１の切粉掻取部材８が当接する構造になっている。 << Detailed Configuration of Magnet Roller 4 >>
4 and 5, the magnet roller 4 includes a fixed shaft 40 located in the chip collecting tank 5, a plurality of magnet pieces 41 attached to the outer peripheral surface of the fixed shaft 40, the fixed shaft 40, and A non-magnetic rotating coated cylinder 43 covering the outer peripheral surface of the magnet rod 42 composed of a plurality of magnet pieces 41, and drive means 44 (see FIG. 6) for driving the rotating coated cylinder 43 to rotate around its axis. In addition, the first chip scraping member 8 is in contact with the outer peripheral surface of the rotating coated cylinder 43.

図１の濾過装置１では、前記マグネットローラ４の固定軸４０を搬送路２での切粉の搬送方向と並行な配置形態とすることで、図２のように、マグネットローラ４が搬送路２での切粉の搬送方向と並行に配置されるように構成してある。 In the filtration device 1 of FIG. 1, the magnet roller 4 is moved in the conveying path 2 as shown in FIG. 2 by arranging the fixed shaft 40 of the magnet roller 4 in parallel with the chip conveying direction in the conveying path 2. It is comprised so that it may be arrange | positioned in parallel with the conveyance direction of the chip in.

さらに、図１の濾過装置１では、マグネットローラ４は、図４及び図５のように、その中心部（具体的には固定軸４０の中心部）より下部側の範囲が切粉捕集槽５の液面下に没入するように配置される構成と、複数のマグネット片４１は、固定軸４０の外周面において、切粉捕集槽５の液面下から第１の切粉掻取部材８付近に至るまでの範囲に取付けられる構成と、これら複数のマグネット片４１のうち第１の切粉掻取部材８に隣接するマグネット４１Ａは、それ以外のマグネット片４１に比べて磁力が弱くなるように設定される構成と、を採用している。 Further, in the filtration device 1 of FIG. 1, the magnet roller 4 has a chip collection tank in a range lower than the center (specifically, the center of the fixed shaft 40) as shown in FIGS. 4 and 5. 5 and a plurality of magnet pieces 41 are arranged on the outer peripheral surface of the fixed shaft 40 from the bottom of the chip collection tank 5 to the first chip scraping member. The magnet 41A adjacent to the first chip scraping member 8 among the plurality of magnet pieces 41 and the configuration attached to the range up to the vicinity of 8 is weaker than the other magnet pieces 41. The configuration is set as described above.

前記マグネットローラ４の回転被覆筒４３はその両端が蓋で塞がれている。従って、回転被覆筒４３内部への機械加工用液の流入は阻止されている。また、この種の回転被覆筒４３としては、例えば、ステンレス製の筒を採用することができるが、これに限定されることはない。ステンレス以外の他の非磁性材料で形成した筒を回転被覆筒４３として採用することも可能である。 Both ends of the rotating coated cylinder 43 of the magnet roller 4 are closed with lids. Therefore, the inflow of the machining fluid into the inside of the rotary coating cylinder 43 is prevented. Moreover, as this kind of rotation coating cylinder 43, for example, a stainless steel cylinder can be adopted, but it is not limited thereto. It is also possible to employ a cylinder formed of a nonmagnetic material other than stainless steel as the rotating coated cylinder 43.

図１の濾過装置１では、図２及び図６に示したように、回転被覆筒４３を回転駆動する駆動手段４４の具体的な構成例として、回転被覆筒４３の一端外周面に取り付けた第１のスプロケットＧ１とこれに掛け回した第１のチェーンＣ１とにより、後述の第３のスプロケットＧ３から動力を受けて回転被覆筒４３を回転駆動する方式を採用しているが、これとは別に、回転被覆筒４３を独立に回転駆動する構成を採用することも可能である。 As shown in FIGS. 2 and 6, in the filtration device 1 of FIG. 1, as a specific configuration example of the driving means 44 that rotationally drives the rotation-covered cylinder 43, The sprocket G1 and the first chain C1 hung around the sprocket G1 receive the power from the third sprocket G3, which will be described later, and rotate the rotating sheath cylinder 43. It is also possible to adopt a configuration in which the rotation-coated cylinder 43 is driven to rotate independently.

《切粉捕集槽５の詳細構成》
図４及び図５を参照すると、切粉捕集槽５は、連通部９付近において搬送路２の側壁からマグネットローラ４の方向に向かって傾斜した斜面５Ａと、斜面５Ａに連続する底面５Ｂとを備えるとともに、その底面５Ｂ及び斜面５Ａと液回収ケース６の外面との間に、第２の切粉掻取部材１１の移動を可能とする隙間部５Ｃを有している。また、この切粉捕集槽５の底面５Ｂは、後述する第２の切粉掻取部材１１の周回軌道に合わせて円弧状に形成してある。 << Detailed Configuration of Chip Collection Tank 5 >>
Referring to FIGS. 4 and 5, the chip collection tank 5 includes a slope 5 A that is inclined from the side wall of the conveyance path 2 toward the magnet roller 4 in the vicinity of the communication portion 9, and a bottom surface 5 B that is continuous with the slope 5 A. And a gap 5 C that allows the second chip scraping member 11 to move between the bottom surface 5 B and the inclined surface 5 A and the outer surface of the liquid recovery case 6. Further, the bottom surface 5B of the chip collecting tank 5 is formed in an arc shape in accordance with the orbit of the second chip scraping member 11 described later.

図１の濾過装置１では、前記のように切粉捕集槽５の底面５Ｂを第２の切粉掻取部材１１の周回軌道に合わせて円弧状に形成していること、及び、後記のように液回収ケース６も同様に円弧状に形成していることから、図４及び図５に示したように、切粉捕集槽５の前記隙間部５Ｃもまた、その底面５Ｂ範囲では第２の切粉掻取部材１１の周回軌道に合わせて円弧状に湾曲した形状になっている。 In the filtration device 1 of FIG. 1, the bottom surface 5B of the chip collection tank 5 is formed in an arc shape in accordance with the orbit of the second chip scraping member 11 as described above, and Similarly, since the liquid recovery case 6 is also formed in an arc shape, as shown in FIGS. 4 and 5, the gap portion 5C of the chip collecting tank 5 is also the first in the range of the bottom surface 5B. The shape is curved in an arc shape in accordance with the orbit of the chip scraping member 11.

《液回収ケース６の詳細構成》
図４及び図５を参照すると、液回収ケース６は、マグネットローラ４の外周下部面と対向する位置で隙間流路７に開口している開口部６Ａと、この開口部６Ａから液回収ケース６内部に流入した機械加工用液を外部へ排出するための機械加工用液の排出口６Ｂ（図６参照）と、を有している。また、この液回収ケース６の底面６Ｃは、先に説明した切粉捕集槽５の底面５Ｂと同じく、後述する第２の切粉掻取部材１１の周回軌道に合わせて円弧状に形成してある。なお、この液回収ケース６はステンレスなどの非磁性材料で形成してある。 << Detailed Configuration of Liquid Recovery Case 6 >>
Referring to FIGS. 4 and 5, the liquid recovery case 6 includes an opening 6 A that opens to the gap channel 7 at a position facing the outer peripheral lower surface of the magnet roller 4, and the liquid recovery case 6 from the opening 6 A. A machining fluid discharge port 6B (see FIG. 6) for discharging the machining fluid flowing into the interior to the outside. Further, the bottom surface 6C of the liquid recovery case 6 is formed in an arc shape in accordance with the orbit of the second chip scraping member 11 described later, like the bottom surface 5B of the chip collecting tank 5 described above. It is. The liquid recovery case 6 is made of a nonmagnetic material such as stainless steel.

《隙間流路７の詳細構成》
図４及び図５を参照すると、隙間流路７は、液回収ケース６端部側を入口７Ａとして構成され、入口７Ａから切粉捕集槽５内の機械加工用液が流入する構造になっている。この隙間流路７に流入した機械加工用液は、前記液回収ケース６の開口部６Ａから液回収ケース６内に流れるが、その前に、機械加工用液中の浮遊切粉は、マグネットローラ４の磁力でマグネットローラ４外周面（具体的には回転被覆筒４３の外周面）に吸い寄せられて吸着する。従って、液回収ケース６内の機械加工用液は、浮遊切粉を除去したクリーンな液体であり、マシニングセンター等で再利用可能である。 << Detailed Configuration of Gap Channel 7 >>
Referring to FIGS. 4 and 5, the gap flow path 7 is configured with an end portion of the liquid recovery case 6 as an inlet 7 A, and has a structure in which the machining liquid in the chip collecting tank 5 flows from the inlet 7 A. ing. The machining liquid that has flowed into the gap flow path 7 flows into the liquid recovery case 6 from the opening 6A of the liquid recovery case 6, but before that, floating chips in the machining liquid are removed from the magnet roller. 4 is attracted to and attracted to the outer peripheral surface of the magnet roller 4 (specifically, the outer peripheral surface of the rotating sheath cylinder 43). Therefore, the machining liquid in the liquid recovery case 6 is a clean liquid from which floating chips are removed, and can be reused in a machining center or the like.

《第１の切粉掻取部材８の詳細構成》
図４及び図５を参照すると、第１の切粉掻取部材８は、マグネットローラ４の外周上部面付近から切粉捕集槽５の斜面５Ａに向けて下り勾配を有するように傾斜したヘラ状の斜板８Ａからなる。そして、この第１の切粉掻取部材８は、切粉捕集槽５の液面より上方の空間において、その斜板８Ａの上縁部がマグネットローラ４の外周上部面付近に当接すること、及び、その当接状態でマグネットローラ４の回転被覆筒４３が図４及び図５の矢印Ｒで示す方向に回転することによって、マグネットローラ４の外周面（具体的には、回転被覆筒４３の外周面）に定着している切粉を掻き取る手段として機能する。 << Detailed Configuration of First Chip Scraping Member 8 >>
Referring to FIGS. 4 and 5, the first chip scraping member 8 is a spatula inclined so as to have a downward gradient from the vicinity of the outer peripheral upper surface of the magnet roller 4 toward the inclined surface 5 A of the chip collection tank 5. The swash plate 8A is formed. The first chip scraping member 8 has an upper edge portion of the swash plate 8 A in contact with the vicinity of the outer peripheral upper surface of the magnet roller 4 in a space above the liquid level of the chip collecting tank 5. And the rotation covering cylinder 43 of the magnet roller 4 rotates in the direction shown by the arrow R in FIGS. 4 and 5 in the contact state, and thereby the outer peripheral surface of the magnet roller 4 (specifically, the rotation covering cylinder 43). It functions as a means for scraping off chips fixed on the outer peripheral surface of the substrate.

第１の切粉掻取部材８で掻き取られた切粉は、図５のように斜板８Ａ（第１の切粉掻取部材）を滑り下って切粉捕集槽５の斜面５Ａに落下し、最終的には、第２の切粉掻取部材１１で掻き取られて邪魔板１０から搬送路２へ送り出される。 The chips scraped off by the first chip scraping member 8 slide down the swash plate 8A (first chip scraping member) as shown in FIG. 5 to the slope 5A of the chip collecting tank 5. It is dropped and finally scraped off by the second chip scraping member 11 and sent out from the baffle plate 10 to the conveyance path 2.

《連通部９の詳細構成》
図２から図６を参照すると、連通部９（図２から図６において格子状のハッチングの部分）は、先に説明した搬送路２の非傾斜区間２Ａ内において、搬送路２から切粉捕集槽５に連通している。このような連通部９は、搬送路２の非傾斜区間２Ａ内で、搬送路２と切粉捕集槽５の間に間仕切りを設けないことによって構成することができる。 << Detailed configuration of communication part 9 >>
Referring to FIGS. 2 to 6, the communication portion 9 (lattice hatched portion in FIGS. 2 to 6) captures chips from the conveyance path 2 in the non-inclined section 2 A of the conveyance path 2 described above. It communicates with the collection tank 5. Such a communication part 9 can be comprised by not providing a partition between the conveyance path 2 and the chip collection tank 5 in the non-inclined section 2A of the conveyance path 2.

《邪魔板１０の詳細構成》
図２を参照すると、邪魔板１０は、その幅が連通部９の幅より狭く、かつ、その形状が図５及び図６のように切粉捕集槽５の斜面５Ａから連通部９を抜けて搬送路２上に突出した形状になっている。なお、図１の濾過装置１においては、かかる邪魔板１０の具体的な突出形状例として、先に説明した切粉捕集槽５の斜面５Ａの一部を搬送路２上まで延長した形状を採用しているが、この延長形状例に限定されることはない。 << Detailed configuration of baffle plate 10 >>
Referring to FIG. 2, the baffle plate 10 has a width narrower than that of the communication portion 9, and the shape of the baffle plate 10 passes through the communication portion 9 from the inclined surface 5 A of the chip collecting tank 5 as shown in FIGS. 5 and 6. Thus, the shape protrudes on the conveyance path 2. In addition, in the filtration apparatus 1 of FIG. 1, the shape which extended a part of slope 5A of the chip collection tank 5 demonstrated previously to the conveyance path 2 as an example of a concrete protrusion shape of this baffle plate 10 was carried out. Although adopted, it is not limited to this extended shape example.

また、邪魔板１０は、図２のように、連通部９の両側のうち投入口１３より遠い一方側に片寄せて設置されることによって、その設置範囲内では搬送路２から連通部９を介する切粉捕集槽５への機械加工用液の流入を阻止する一方、その設置以外の範囲は流入口１６として前記流入を許容する手段として機能する。 Further, as shown in FIG. 2, the baffle plate 10 is arranged to be shifted to one side far from the inlet 13 among the both sides of the communication portion 9, so that the communication portion 9 is moved from the conveyance path 2 within the installation range. While the flow of the machining fluid into the chip collecting tank 5 is blocked, the area other than the installation functions as an inlet 16 that allows the inflow.

《第２の切粉掻取部材１１の詳細構成》
図４から図６を参照すると、第２の切粉掻取部材１１は、連通部９に向かって切粉捕集槽５の隙間部５Ｃを移動（図５から図６中の矢印Ｓで示す方向への移動）することで、切粉捕集槽５の底面５Ｂや斜面５Ａから切粉を掻き取り、掻き取った切粉を邪魔板１０から搬送路２へ送り出す手段として機能する。 << Detailed Configuration of Second Chip Scraping Member 11 >>
Referring to FIGS. 4 to 6, the second chip scraping member 11 moves through the gap 5 C of the chip collection tank 5 toward the communication part 9 (indicated by an arrow S in FIGS. 5 to 6). (Moving in the direction), scrapes off the chips from the bottom surface 5B and the slope 5A of the chip collection tank 5 and functions as a means for sending the scraped scraps from the baffle plate 10 to the conveyance path 2.

また、前記第２の切粉掻取部材１１は、ヘラ状の掻取板１１Ａからなり、マグネットローラ４の外周を一回りする周回軌道に乗って、切粉捕集槽５の隙間部５Ｃを移動する。なお、この第２の切粉掻取部材１１はステンレスなどの非磁性材料で形成してある。 The second chip scraping member 11 is composed of a spatula-shaped scraping plate 11A and rides on a circular orbit around the outer periphery of the magnet roller 4 so that the gap 5C of the chip collecting tank 5 is formed. Moving. The second chip scraping member 11 is made of a nonmagnetic material such as stainless steel.

前記のような周回軌道に乗った第２の切粉掻取部材１１の移動を実現する手段の構成例として、図１の濾過装置１では、図２のように連通部９付近においてスクリューコンベア３Ａ（切粉搬送部材）に連動して回転する動力伝達軸１８を搬送路２と並行に配置するとともに、その動力伝達軸１８の外周面に第２のスプロケットＧ２（図６参照）を取り付ける構成と、図６に示したように、マグネットローラ４の斜め上方に第３のスプロケットＧ３を設置する構成と、前記第２及び第３のスプロケットＧ２、Ｇ３と液回収ケース６の下回りに第２のチェーンＣ２を掛け回し、該チェーンＣ２に第２の切粉掻取部材１１が取付けられる構成を採用している。このような構成とは別の構成によって第２の切粉掻取部材１１の移動を実現してもよい。 As an example of the configuration of the means for realizing the movement of the second chip scraping member 11 on the orbit as described above, in the filtration device 1 of FIG. 1, the screw conveyor 3A is provided in the vicinity of the communication portion 9 as shown in FIG. The power transmission shaft 18 that rotates in conjunction with the (chip conveying member) is arranged in parallel with the conveyance path 2 and the second sprocket G2 (see FIG. 6) is attached to the outer peripheral surface of the power transmission shaft 18. 6, a configuration in which a third sprocket G3 is installed obliquely above the magnet roller 4, and a second chain below the second and third sprockets G2 and G3 and the liquid recovery case 6 is provided. A configuration is adopted in which the second chip scraping member 11 is attached to the chain C2 by wrapping around C2. The movement of the second chip scraping member 11 may be realized by a configuration different from such a configuration.

《壁面マグネット１２の詳細構成》
図４及び図５を参照すると、壁面マグネット１２は、先に説明した流入口１６から切粉捕集槽５に流入した機械加工用液中の切粉をターゲットとし、かかるターゲットの切粉を磁力で切粉捕集槽５の底面５Ｂや斜面５Ａに定着させる手段として機能する。 << Detailed Configuration of Wall Magnet 12 >>
Referring to FIGS. 4 and 5, the wall magnet 12 targets the chips in the machining liquid flowing into the chip collection tank 5 from the inlet 16 described above as a target, and uses the chips of the target as a magnetic force. It functions as a means for fixing to the bottom surface 5B and the slope 5A of the chip collection tank 5.

ところで、図２を参照すると、前記流入口１６の周辺では、同図中の矢印Ｔで示すように、搬送路２から切粉捕集槽５への機械加工用液の流れが生じる。この機械加工用液の流れに乗って、機械加工用液中の浮遊切粉も、搬送路２から流入口１６を経て切粉捕集槽５に流入する。 By the way, referring to FIG. 2, in the vicinity of the inflow port 16, as shown by an arrow T in the figure, a flow of the machining fluid from the conveying path 2 to the chip collecting tank 5 occurs. Along with this flow of machining liquid, floating chips in the machining liquid also flow into the chip collection tank 5 from the conveyance path 2 through the inlet 16.

前記のように切粉捕集槽５に流入する浮遊切粉が流入口１６の周辺、特に切粉捕集槽５の斜面５Ａ上縁付近に磁力で定着すると、下記（Ａ）浮遊切粉の戻り現象と下記（Ｂ）浮遊切粉の再定着現象との繰り返しによって、浮遊切粉の循環が生じる。 As described above, when floating chips flowing into the chip collection tank 5 are magnetically fixed around the inlet 16, particularly near the upper edge of the slope 5 A of the chip collection tank 5, the following (A) By repeating the return phenomenon and the (B) re-fixing phenomenon of floating chips, the floating chips are circulated.

（Ａ）浮遊切粉の戻り現象
浮遊切粉の戻り現象とは、切粉捕集槽５の斜面５Ａ上縁付近に磁力で定着した浮遊切粉が第２の切粉掻取部材１１で掻き取られて搬送路２に戻される現象である。
（Ｂ）浮遊切粉の再定着現象
浮遊切粉の再定着現象とは、前記のように戻された浮遊切粉が、前述の機械加工用液の流れに乗って、流入口１６から再び切粉捕集槽５に流入し、切粉捕集槽５の斜面５Ａ上縁付近に磁力で再定着する現象である。 (A) Returning phenomenon of floating chips The returning phenomenon of floating chips means that floating chips fixed by a magnetic force near the upper edge of the slope 5A of the chip collecting tank 5 are scraped by the second chip scraping member 11. This is a phenomenon that is taken back to the transport path 2.
(B) Re-fixing phenomenon of floating chips The re-fixing phenomenon of floating chips means that the floating chips returned as described above ride on the flow of the above-mentioned machining liquid and cut again from the inlet 16. This is a phenomenon that flows into the powder collection tank 5 and re-fixes by magnetic force near the upper edge of the slope 5A of the chip collection tank 5.

このため、切粉捕集槽５の斜面５Ａ上縁付近にも壁面マグネット１２の磁力が及ぶ構成を採用した場合には、前記のように流入口１６の周辺で浮遊切粉の循環が生じるため、浮遊切粉のように比重が比較的小さい切粉を効率よく第２の切粉掻取部材１１で搬送路２側へ送り出すことができない。 For this reason, when the configuration in which the magnetic force of the wall surface magnet 12 is also applied to the vicinity of the upper edge of the slope 5A of the chip collecting tank 5, the floating chips circulate around the inlet 16 as described above. Further, it is not possible to efficiently send chips having a relatively small specific gravity, such as floating chips, to the conveyance path 2 side by the second chip scraping member 11.

そこで、図１の濾過装置１においては、前記のような浮遊切粉の循環による不具合（第２の切粉掻取部材１１による搬送路２側への切粉の送り出し効率の低下）を防止する手段として、流入口１６の周辺は、図３及び図４に示したように、前記壁面マグネット１２が存在しないマグネット不存在部１７として構成することで、機械加工用液中の切粉が磁力で切粉捕集槽５の斜面５Ａ上縁付近に定着する現象を抑制している。 Therefore, in the filtering device 1 of FIG. 1, the above-described malfunction due to the circulation of floating chips (decrease in the efficiency of sending chips to the conveying path 2 by the second chip scraping member 11) is prevented. As a means, as shown in FIGS. 3 and 4, the periphery of the inflow port 16 is configured as a magnet non-existing portion 17 in which the wall surface magnet 12 does not exist, so that the chips in the machining liquid are magnetically applied. The phenomenon of fixing near the upper edge of the slope 5A of the chip collecting tank 5 is suppressed.

特に、図１の濾過装置１では、前記のように流入口１６の周辺に位置する斜面５Ａ上縁付近をマグネット不存在部１７とする一方、それ以外の残りの斜面５Ａの部分と切粉捕集槽５の底面５Ｂとをカバーする範囲については、壁面マグネット１２が設けられる構成を採用している。 In particular, in the filtration device 1 of FIG. 1, the upper edge of the slope 5A located around the inlet 16 is used as the magnet-free portion 17 as described above, while the remaining slope 5A and the remaining portion of the slope 5A are collected. About the range which covers the bottom face 5B of the collection tank 5, the structure in which the wall surface magnet 12 is provided is employ | adopted.

なお、前記のようなマグネット不存在部１７の他の実施形態として、例えば図７に示したように、マグネット不存在部１７を切粉捕集槽５の底面５Ｂまで延長拡大した構成を採用することもできる。 As another embodiment of the magnet non-existing portion 17 as described above, for example, as shown in FIG. 7, a configuration in which the magnet non-existing portion 17 is extended to the bottom surface 5B of the chip collecting tank 5 is adopted. You can also.

ところで、切粉搬送部材３による切粉の搬送方向との関係から、流入口１６から切粉捕集槽５への機械加工用液の流れは、邪魔板１０が位置する方の切粉捕集槽５片側に向かう流れとなるため、切粉捕集槽５片側の底面５Ｂや斜面５Ａに偏って浮遊切粉が存在する場合が多い。この場合は先に説明したマグネット不存在部１７の他の実施形態を採用し、切粉捕集槽５片側の底面５Ｂや斜面５Ａに浮遊切粉を磁力で定着させれば十分であると考えられる。このような他の実施形態を採用した場合は、壁面マグネット１２の節約による装置コストの低減を図ることができる。 By the way, from the relationship with the chip conveying direction by the chip conveying member 3, the flow of the machining liquid from the inlet 16 to the chip collecting tank 5 is the chip collecting of the one where the baffle plate 10 is located. Since the flow is directed toward one side of the tank 5, there are many cases where floating chips are present biased toward the bottom surface 5 B or the slope 5 A on the side of the chip collecting tank 5. In this case, it is considered sufficient to adopt another embodiment of the magnet-free portion 17 described above and fix the floating chips to the bottom surface 5B or the slope 5A on one side of the chip collection tank 5 by magnetic force. It is done. When such other embodiments are employed, the cost of the apparatus can be reduced by saving the wall surface magnet 12.

《図１の濾過装置の動作説明》
図１の濾過装置１は、例えば図示しない起動スイッチの押下により、切粉搬送部材３が投入口１３から排出口１４に向かって切粉を搬送する動作、マグネットローラ４の回転被覆筒４３が図４及び図５中の矢印Ｒで示す方向に回転する動作、及び、第２の切粉掻取部材１１が図４及び図５中の矢印Ｓで示す方向に隙間部５Ｃを移動することで切粉捕集槽５の底面５Ｂや斜面５Ａから切粉を掻き取る動作が行われる。 << Description of Operation of Filtration Device in FIG. 1 >>
In the filtering device 1 of FIG. 1, for example, when a start switch (not shown) is pressed, the chip conveying member 3 conveys the chip from the input port 13 toward the discharge port 14, and the rotary coated cylinder 43 of the magnet roller 4 is illustrated. 4 and the operation of rotating in the direction indicated by the arrow R in FIG. 5, and the second chip scraping member 11 moves by moving the gap 5C in the direction indicated by the arrow S in FIGS. The operation of scraping off chips from the bottom surface 5B and the slope 5A of the powder collecting tank 5 is performed.

そして、図１の濾過装置１を使用して機械加工用液を濾過する際は、投入口１３に機械加工用液を投入する。投入した機械加工用液は搬送路２に流入し、流入した機械加工用液の液面（図４参照）が搬送路２の側壁を越えると、連通部９付近において搬送路２から溢れた機械加工用液が流入口１６を通って切粉捕集槽５に流入する。 Then, when the machining liquid is filtered using the filtration device 1 of FIG. 1, the machining liquid is charged into the charging port 13. The charged machining fluid flows into the conveyance path 2, and the machine overflows from the conveyance path 2 in the vicinity of the communicating portion 9 when the level of the fluid (see FIG. 4) of the machining fluid that has flowed in passes the side wall of the conveyance path 2. The processing liquid flows into the chip collection tank 5 through the inlet 16.

以上のようにして切粉捕集槽５に流入した機械加工用液は、更に、液回収ケース６端部側の入口７Ａから隙間流路７内に流入した後、隙間流路７の最低部に位置する開口部６Ａから液回収ケース６内に流れる。この液回収ケース６内の機械加工用液が外部に排出されマシニングセンター等で再利用される。 The machining liquid that has flowed into the chip collection tank 5 as described above further flows into the gap channel 7 from the inlet 7A on the end side of the liquid recovery case 6, and then the lowest part of the gap channel 7 It flows into the liquid recovery case 6 from the opening 6A located at the position. The machining liquid in the liquid recovery case 6 is discharged to the outside and reused at a machining center or the like.

ところで、前記のように投入口１３から搬送路２内に投入された機械加工用液中の切粉のうち、比重が比較的大きい切粉は、その自重により搬送路２の底面に沈殿し、切粉搬送部材３によって排出口１４まで搬送され、最終的に排出口１４から外部に排出される。 By the way, among the swarf in the machining fluid charged into the conveying path 2 from the inlet 13 as described above, the swarf having a relatively large specific gravity is deposited on the bottom surface of the conveying path 2 by its own weight, It is conveyed to the discharge port 14 by the chip conveying member 3 and finally discharged from the discharge port 14 to the outside.

一方、前記のように投入された機械加工用液中の切粉のうち、比重が比較的小さい浮遊切粉は、搬送路２から流入口１６を経て切粉捕集槽５に向かう機械加工用液の流れ（図４中の矢印Ｔで示す方向の流れ）に乗って、搬送路２から流入口１６を経て切粉捕集槽５に流入する。 On the other hand, among the chips in the machining liquid charged as described above, floating chips having a relatively small specific gravity are used for machining from the conveyance path 2 through the inlet 16 to the chip collection tank 5. It rides on the flow of liquid (flow in the direction indicated by arrow T in FIG. 4) and flows into the chip collection tank 5 from the conveyance path 2 through the inlet 16.

その際、機械加工用液中の浮遊切粉は、流入口１６から切粉捕集槽５の斜面５Ａ上縁付近を通って切粉捕集槽５の奥部に移行するが、その流入口１６の周辺は、前述の通り、壁面マグネット１２が存在しないマグネット不存在部１７として構成されることにより、機械加工用液中の切粉が磁力で切粉捕集槽５の斜面５Ａ上縁付近に定着する現象を抑制してある。このため、流入口１６の周辺では、切粉捕集槽５の斜面５Ａ上縁付近に磁力で切粉が定着することはない。 At that time, the floating chips in the machining fluid pass from the inlet 16 through the vicinity of the upper edge of the slope 5A of the chip collecting tank 5 to the inner part of the chip collecting tank 5, but the inlet As described above, the periphery of 16 is configured as a magnet non-existing portion 17 in which the wall surface magnet 12 does not exist, so that the chips in the machining liquid are magnetically close to the upper edge of the slope 5A of the chip collecting tank 5 This suppresses the phenomenon of fixing to the surface. For this reason, in the vicinity of the inflow port 16, chips are not fixed by magnetic force near the upper edge of the slope 5 A of the chip collection tank 5.

前記のように切粉捕集槽５に流入した浮遊切粉は、マグネットローラ４の回転や第２の切粉掻取部材１１の移動によって掻き混ぜられ、切粉捕集槽５内で流動する。そして、流動する浮遊切粉は、切粉捕集槽５の底面５Ｂや斜面５Ａに接近したとき、壁面マグネット１２の磁力で切粉捕集槽５の底面５Ｂや斜面５Ａに引き寄せられて定着する。定着した切粉は、図５のように隙間部５Ｃを移動する第２の切粉掻取部材１１で掻き取られ、邪魔板１０から搬送路２に送り出される。 As described above, the floating chips flowing into the chip collection tank 5 are agitated by the rotation of the magnet roller 4 and the movement of the second chip scraping member 11 and flow in the chip collection tank 5. . Then, when the floating chips that flow are close to the bottom surface 5B and the slope 5A of the chip collection tank 5, they are attracted and fixed to the bottom surface 5B and the slope 5A of the chip collection tank 5 by the magnetic force of the wall surface magnet 12. . The fixed chips are scraped off by the second chip scraping member 11 moving through the gap 5C as shown in FIG. 5 and sent out from the baffle plate 10 to the transport path 2.

邪魔板１０付近では、搬送路２から切粉捕集槽５への機械加工用液の流入が邪魔板１０によって阻止されている。このため、前記のように邪魔板１０から搬送路２に送り出された切粉が機械加工用液の流れに乗って再び切粉捕集槽５に送り返されることはない。前記のように邪魔板１０から搬送路２に送り出された切粉は、切粉搬送部材３によって排出口１４まで搬送され、排出口１４から外部に排出される。 In the vicinity of the baffle plate 10, the baffle plate 10 prevents the machining liquid from flowing from the conveyance path 2 to the chip collection tank 5. For this reason, the chips sent out from the baffle plate 10 to the conveying path 2 as described above are not sent back to the chip collection tank 5 again on the flow of the machining liquid. As described above, the chips sent from the baffle plate 10 to the conveying path 2 are conveyed to the discharge port 14 by the chip conveying member 3 and are discharged from the discharge port 14 to the outside.

ところで、切粉捕集槽５に流入した機械加工用液の中には、壁面マグネット１２の磁力による切粉捕集槽５の底面５Ｂや斜面５Ａへの定着を逃れて残存する切粉（以下「残存切粉」という）も存在し得るが、この残存切粉は、以下の動作によって、機械加工用液中から除去される。 By the way, in the machining fluid that has flowed into the chip collection tank 5, the remaining chips (hereinafter referred to as the chips) that escape from fixing to the bottom surface 5 B and the slope 5 A of the chip collection tank 5 due to the magnetic force of the wall magnet 12. There may also be "residual chips", but these residual chips are removed from the machining fluid by the following operations.

《残存切粉の除去動作》
前記残存切粉は、液回収ケース６端部側の入口７Ａから隙間流路７内に流入するが、その流入直後から、図４のように、マグネットローラ４の磁力で同マグネットローラ４の外周面（具体的には、回転被覆筒４３の外周面）に吸い寄せられ定着する。 <Removal of residual chips>
The residual chips flow into the clearance channel 7 from the inlet 7A on the end side of the liquid recovery case 6, but immediately after the inflow, the outer periphery of the magnet roller 4 by the magnetic force of the magnet roller 4 as shown in FIG. It is sucked and fixed to the surface (specifically, the outer peripheral surface of the rotation-coated cylinder 43).

前記のようにマグネットローラ４の外周面に定着した残存切粉は、回転被覆筒４３の回転（図４及び図５中の矢印Ｒで示す方向への回転）により、その定着状態を維持したまま切粉捕集槽５の液面上方に抜けた後、斜板８Ａ（第１の切粉掻取部材８）まで移送された時点で、その斜板８Ａの先端により掻き取られる。 The remaining chips fixed on the outer peripheral surface of the magnet roller 4 as described above are maintained in the fixed state by the rotation of the rotary coating cylinder 43 (rotation in the direction indicated by the arrow R in FIGS. 4 and 5). After passing above the liquid level of the chip collection tank 5, when it is transferred to the swash plate 8A (first chip scraping member 8), it is scraped off by the tip of the swash plate 8A.

前記のように掻き取られた残存切粉は、図５のように、斜板８Ａ（第１の切粉掻取部材８）を滑り下って切粉捕集槽５の斜面５Ａに落下し、最終的に第２の切粉掻取部材１１で掻き取られて邪魔板１０から搬送路２へ送り出される。 The remaining chips scraped off as described above slide down the swash plate 8A (first chip scraping member 8) and fall onto the slope 5A of the chip collection tank 5, as shown in FIG. Finally, it is scraped off by the second chip scraping member 11 and sent out from the baffle plate 10 to the conveying path 2.

図４及び図５を参照すると、マグネットローラ４の回転被覆筒４３が回転する方向と隙間流路７内において機械加工用液が流れる方向とは、完全に逆向きになっている。このため、隙間流路７内では、機械加工用液の流れに乱流が生じ、機械加工用液中の残存切粉がその乱流に乗ってマグネットローラ４の外周面に接近し易いから、磁力によるマグネットローラ４外周面への残存切粉の定着率は高く、殆どの残留切粉をマグネットローラ４外周面に定着させることが可能である。 Referring to FIGS. 4 and 5, the direction in which the rotating cylinder 43 of the magnet roller 4 rotates and the direction in which the machining fluid flows in the gap flow path 7 are completely opposite to each other. For this reason, in the gap flow path 7, a turbulent flow is generated in the flow of the machining liquid, and the remaining chips in the machining liquid easily get on the turbulent flow and approach the outer peripheral surface of the magnet roller 4, The fixing rate of the remaining chips on the outer peripheral surface of the magnet roller 4 due to the magnetic force is high, and most residual chips can be fixed on the outer peripheral surface of the magnet roller 4.

以上説明した図１の濾過装置１によると、前記の通り、切粉捕集槽５内の機械加工用液から切粉を磁力で取り除く手段としてマグネットローラ４を採用するとともに、そのマグネットローラ４の具体的な構成として、固定軸４０の外周面に取付けた複数のマグネット片４１のうち第１の切粉掻取部材８に隣接するマグネット片４１Ａは、それ以外のマグネット片に比べて磁力が弱くなるように設定した。このため、第１の切粉掻取部材８の周辺ではマグネットローラ４の磁力が弱まっていることから、第１の切粉掻取部材８付近での切粉の戻り現象（具体的には、マグネットローラ４を構成する回転被覆筒４３の外周面から第１の切粉掻取部材８によって掻き取った切粉が当該マグネットローラ４の磁力によって回転被覆筒４３の外周面に吸い寄せられて戻る現象）を効果的に防止でき、機械加工用液中から切粉を効率よく取り除くことができる。 According to the filtration apparatus 1 of FIG. 1 demonstrated above, while using the magnet roller 4 as a means to remove a chip from the machining liquid in the chip collection tank 5 by magnetic force as above-mentioned, of the magnet roller 4 As a specific configuration, among the plurality of magnet pieces 41 attached to the outer peripheral surface of the fixed shaft 40, the magnet piece 41A adjacent to the first chip scraping member 8 has a lower magnetic force than the other magnet pieces. Was set to be. For this reason, since the magnetic force of the magnet roller 4 is weak in the vicinity of the first chip scraping member 8, the chip returning phenomenon in the vicinity of the first chip scraping member 8 (specifically, A phenomenon in which the chips scraped by the first chip scraping member 8 from the outer peripheral surface of the rotating coated cylinder 43 constituting the magnet roller 4 are attracted to the outer peripheral surface of the rotating coated cylinder 43 by the magnetic force of the magnet roller 4 and returned. ) Can be effectively prevented, and chips can be efficiently removed from the machining fluid.

また、図１の濾過装置１にあっては、マグネットローラ４と壁面マグネットの併用により、機械加工用液中の切粉をより一層効率よく取り除くことができる。 Moreover, in the filtration apparatus 1 of FIG. 1, the chip in the liquid for machining can be more efficiently removed by the combined use of the magnet roller 4 and the wall magnet.

本発明は、以上説明した実施形態に限定されるものではなく、本発明の技術的思想内で当分野において通常の知識を有する者により多くの変形が可能である。 The present invention is not limited to the embodiments described above, and many modifications can be made by those having ordinary knowledge in the art within the technical idea of the present invention.

１濾過装置
２搬送路
２Ａ非傾斜区間
２Ｂ傾斜区間
３切粉搬送部材
３Ａスクリューコンベア
３１非傾斜スクリューコンベア部
３２傾斜スクリューコンベア部
３３継ぎ手
４マグネットローラ
４０固定軸
４１マグネット片
４２マグネット棒
４３回転被覆筒
４４回転被覆筒の駆動手段
５切粉捕集槽
５Ａ切粉捕集槽の斜面
５Ｂ切粉捕集槽の底面
５Ｃ切粉捕集槽の隙間部
６液回収ケース
７隙間流路
７Ａ隙間流路の入口
８第１の切粉掻取部材
８Ａ斜板
９連通部
１０邪魔板
１１第２の切粉掻取部材
１１Ａ掻取板（スクレーパー）
１２壁面マグネット
１３投入口
１４排出口
１６流入口
１７マグネット不存在部
１８動力伝達軸
Ｃ１第１のチェーン
Ｃ２第２のチェーン
Ｇ１第１のスプロケット
Ｇ２第２のスプロケット
Ｇ３第３のスプロケット
Ｒマグネットローラの回転被覆筒の回転方向
Ｓ第２の切粉掻取部材の移動方向
Ｔ搬送路から切粉捕集槽への機械加工用液の流れ 1 Filtration device 2 Conveying path 2A Non-inclined section 2B Inclined section 3 Chip conveying member 3A Screw conveyor 31 Non-inclined screw conveyor section 32 Inclined screw conveyor section 33 Joint 4 Magnet roller 40 Fixed shaft 41 Magnet piece 42 Magnet rod 43 Rotating coated cylinder 44 Rotating sheath cylinder drive means 5 Chip collection tank 5A Slope 5B of chip collection tank 5C Bottom face of chip collection tank 5C Clearance part 6 of chip collection tank Liquid recovery case 7 Gap channel 7A Gap channel Inlet 8 first chip scraping member 8A swash plate 9 communicating portion 10 baffle plate 11 second chip scraping member 11A scraping plate (scraper)
12 Wall magnet 13 Input port 14 Discharge port 16 Inlet port 17 Magnet absent portion 18 Power transmission shaft C1 First chain C2 Second chain G1 First sprocket G2 Second sprocket G3 Third sprocket R Third roller Rotation direction S of the rotating coated cylinder Movement direction T of the second chip scraping member Flow of machining fluid from the conveyance path to the chip collection tank

本発明は、例えばマシニングセンターで使用された研削油、切削油などのように、切粉を含んだ機械加工用液から該切粉を取り除く濾過装置に関し、特に、機械加工用液中から切粉を効率よく取り除くことができるようにしたものである。 The present invention relates to a filtration device that removes chips from machining fluid containing chips, such as grinding oil and cutting oil used in machining centers, and more particularly, to remove chips from machining fluid. It is designed to be removed efficiently.

本発明は前記問題点を解決するためになされたものであり、その目的は、機械加工用液中から切粉を効率よく取り除くことができる濾過装置を提供することである。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a filtration device that can efficiently remove chips from machining fluid.

前記目的を達成するために、本発明に係る濾過装置は、切粉を含んだ機械加工用液から該切粉を取り除く濾過装置であって、前記切粉の搬送路と、前記搬送路に設けた切粉搬送部材と、前記搬送路の横に並べて併設したマグネットローラと、前記マグネットローラを収容する切粉捕集槽と、前記マグネットローラの外周下部面と対向する液回収ケースと、前記マグネットローラと前記液回収ケースとの隙間からなる隙間流路と、前記マグネットローラの外周上部面付近に当接する第１の切粉掻取部材と、前記搬送路から前記切粉捕集槽に連通する連通部と、前記連通部に設置した邪魔板と、前記切粉捕集槽に設けた第２の切粉掻取部材と、前記切粉捕集槽の外壁面に取り付けた壁面マグネットと、を具備し、前記搬送路は、その上流側に設けた機械加工用液の投入口と、その下流側に設けた切粉の排出口と、を備え、前記切粉搬送部材は、前記投入口から前記排出口に向けて機械加工用液中の切粉を搬送し、前記マグネットローラは、前記搬送路での切粉の搬送方向と並行な配置形態で前記切粉捕集槽内に位置する固定軸と、前記固定軸の外周面に取付けた複数のマグネット片と、前記固定軸及び前記複数のマグネット片からなるマグネット棒の外周面を覆う非磁性の回転被覆筒と、前記回転被覆筒をその軸心周りに回転駆動する駆動手段と、を備え、その回転被覆筒の外周面に前記第１の切粉掻取部材が当接する構造になっているとともに、前記複数のマグネット片のうち前記第１の切粉掻取部材に隣接するマグネット片は、それ以外のマグネット片に比べて磁力が弱くなるように設定してあり、前記切粉捕集槽は、前記連通部付近において前記搬送路の側壁から前記マグネットローラの方向に向かって傾斜した斜面と、この斜面に連続する底面とを備えるとともに、その底面及び斜面と前記液回収ケースの外面との間に、前記第２の切粉掻取部材の移動を可能とする隙間部を有し、前記隙間流路は、前記液回収ケースの端部側を流入口として前記機械加工用液が流入する構造になっており、前記液回収ケースは、前記マグネットローラの外周下部面と対向する位置で前記隙間流路に開口している開口部と、この開口部から液回収ケース内部に流入した機械加工用液を外部へ排出するための機械加工用液の排出口と、を有し、前記邪魔板は、その幅が前記連通部の幅より狭く、その形状が前記切粉捕集槽の斜面から前記連通部を抜けて前記搬送路上に突出した形状になっていて、かつ、前記連通部の両側のうち前記投入口より遠い一方側に片寄せて設置されることにより、その設置範囲内では前記搬送路から前記連通部を介する前記切粉捕集槽への機械加工用液の流入を阻止し、その設置以外の範囲は流入口として前記流入を許容する手段であり、前記第２の切粉掻取部材は、前記連通部に向かって前記切粉捕集槽の前記隙間部を移動することにより、前記切粉捕集槽の底面や斜面から切粉を掻き取り、掻き取った切粉を前記邪魔板から前記搬送路へ送り出す手段として機能し、前記壁面マグネットは、前記流入口から前記切粉捕集槽に流入した機械加工用液中の切粉を磁力で前記切粉捕集槽の底面や斜面に定着させる手段として機能し、前記流入口の周辺は、前記壁面マグネットが存在しないマグネット不存在部として構成することにより、壁面マグネットの磁力で機械加工用液中の切粉が切粉捕集槽の斜面上縁付近に定着する現象を抑制してあることを特徴とする。 In order to achieve the above object, a filtration device according to the present invention is a filtration device that removes chips from a machining fluid containing chips, and is provided in the chip conveyance path and the conveyance path. A chip conveying member, a magnet roller arranged side by side next to the conveying path, a chip collecting tank for housing the magnet roller, a liquid recovery case facing the outer peripheral lower surface of the magnet roller, and the magnet A gap channel formed by a gap between the roller and the liquid recovery case, a first chip scraping member that is in contact with the vicinity of the upper peripheral surface of the magnet roller, and the chip collecting tank communicated from the conveyance path A communicating part, a baffle plate installed in the communicating part, a second chip scraping member provided in the chip collecting tank, and a wall magnet attached to an outer wall surface of the chip collecting tank. And the conveyance path is provided on the upstream side thereof. A machining fluid supply port, and a chip discharge port provided on the downstream side of the machining fluid, and the chip conveying member moves from the input port toward the discharge port. The magnet roller has a fixed shaft positioned in the chip collection tank in an arrangement form parallel to the chip transport direction in the transport path, and a plurality of attached to the outer peripheral surface of the fixed shaft. A magnet piece, a nonmagnetic rotation-coated tube that covers an outer peripheral surface of a magnet rod composed of the fixed shaft and the plurality of magnet pieces, and a driving unit that rotationally drives the rotation-coated tube around its axis, The first chip scraping member is in contact with the outer peripheral surface of the rotating coated cylinder, and the magnet piece adjacent to the first chip scraping member among the plurality of magnet pieces is: The magnetic force is weaker than other magnet pieces. The chip collection tank includes a slope that is inclined from the side wall of the transport path toward the magnet roller in the vicinity of the communication portion, and a bottom face that is continuous with the slope. And a gap between the inclined surface and the outer surface of the liquid recovery case, the gap for allowing the second chip scraping member to move, and the gap flow path is connected to the end of the liquid recovery case. The machining liquid is configured to flow as an inflow port, and the liquid recovery case has an opening that opens to the gap flow path at a position facing the outer peripheral lower surface of the magnet roller, and the opening. A machining fluid discharge port for discharging the machining fluid that has flowed into the liquid recovery case from the outside, the width of the baffle plate being narrower than the width of the communication portion, The shape from the slope of the chip collection tank It has a shape that protrudes on the conveyance path through the communicating portion, and is arranged so as to be shifted to one side farther from the input port on both sides of the communicating portion, so that the conveyance is within the installation range. Blocking the inflow of the machining fluid from the passage into the chip collection tank via the communicating portion, and the range other than the installation are means for allowing the inflow as an inflow port, and the second chip scraping The collecting member moves the gap portion of the chip collection tank toward the communication part, scrapes off the chip from the bottom surface and the slope of the chip collection tank, It functions as a means for sending out from the baffle plate to the conveyance path, and the wall surface magnet is a bottom surface of the chip collection tank by the magnetic force of the chips in the machining fluid flowing into the chip collection tank from the inlet It functions as a means for fixing to the slope, and the periphery of the inlet is That by serial wall magnet is configured as a magnet missing portion does not exist, are suppressed phenomenon of chips of machining fluid by the magnetic force of the wall the magnet is fixed in the vicinity of the slopes on the edges of the chips collecting tank It is characterized by.

本発明にあっては、前記の通り、切粉捕集槽内の機械加工用液から切粉を磁力で取り除く手段としてマグネットローラを採用するとともに、そのマグネットローラの具体的な構成として、固定軸の外周面に取付けた複数のマグネット片のうち切粉掻取部材に隣接するマグネット片は、それ以外のマグネット片に比べて磁力が弱くなるように設定した。このため、切粉掻取部材の周辺ではマグネットローラの磁力が弱まっていることから、切粉掻取部材付近での切粉の戻り現象（具体的には、マグネットローラを構成する回転被覆筒の外周面から切粉掻取部材によって掻き取った切粉が当該マグネットローラの磁力によって回転被覆筒の外周面に吸い寄せられて戻る現象）を効果的に防止でき、機械加工用液中から切粉を効率よく取り除くことができる濾過装置を提供し得る。 In the present invention, as described above, a magnet roller is employed as means for removing the chips from the machining fluid in the chip collection tank by magnetic force, and a specific configuration of the magnet roller includes a fixed shaft. Among the plurality of magnet pieces attached to the outer peripheral surface, the magnet piece adjacent to the chip scraping member was set so that the magnetic force was weaker than that of the other magnet pieces. For this reason, since the magnetic force of the magnet roller is weak in the vicinity of the chip cleaning member, the return phenomenon of the chip in the vicinity of the chip cleaning member (specifically, the rotating coated cylinder constituting the magnet roller) The phenomenon that the chip scraped off from the outer peripheral surface by the chip scraping member is attracted and returned to the outer peripheral surface of the rotating coated cylinder by the magnetic force of the magnet roller can be effectively prevented. A filtration device that can be removed efficiently can be provided.

Claims

切粉を含んだ機械加工用液から該切粉を取り除く濾過装置において、その機械加工用液が流入する切粉捕集槽内に収容されるとともに、その切粉捕集槽内の機械加工用液から切粉を磁力で取り除く手段として用いられるマグネットローラであって、
前記切粉捕集槽内に位置する固定軸と、前記固定軸の外周面に取付けた複数のマグネット片と、該固定軸及び前記複数のマグネット片からなるマグネット棒の外周面を覆う非磁性の回転被覆筒と、前記回転被覆筒をその軸心周りに回転駆動する駆動手段と、を備え、前記回転被覆筒の外周面に切粉掻取部材が当接する構造になっているとともに、前記複数のマグネット片のうち前記切粉掻取部材に隣接するマグネット片は、それ以外のマグネット片に比べて磁力が弱くなるように設定してあること
を特徴とするマグネットローラ。 In a filtration device that removes chips from machining fluid containing chips, the device is accommodated in a chip collection tank into which the machining liquid flows, and for machining in the chip collection tank. A magnet roller used as a means for removing chips from liquid by magnetic force,
A non-magnetic covering the outer peripheral surface of a magnet rod composed of a fixed shaft positioned in the chip collecting tank, a plurality of magnet pieces attached to the outer peripheral surface of the fixed shaft, and the fixed shaft and the plurality of magnet pieces; A rotating coated cylinder and a driving means for rotating the rotating coated cylinder around its axis, wherein the chip scraping member is in contact with the outer peripheral surface of the rotating coated cylinder, Among the magnet pieces, a magnet piece adjacent to the chip scraping member is set so that the magnetic force is weaker than other magnet pieces.

切粉を含んだ機械加工用液から該切粉を取り除く濾過装置であって、
前記切粉の搬送路と、
前記搬送路に設けた切粉搬送部材と、
前記搬送路の横に並べて併設したマグネットローラと、
前記マグネットローラを収容する切粉捕集槽と、
前記マグネットローラの外周下部面と対向する液回収ケースと、
前記マグネットローラと前記液回収ケースとの隙間からなる隙間流路と、
前記マグネットローラの外周上部面付近に当接する第１の切粉掻取部材と、
前記搬送路から前記切粉捕集槽に連通する連通部と、
前記連通部に設置した邪魔板と、
前記切粉捕集槽に設けた第２の切粉掻取部材と、を具備し、
前記搬送路は、その上流側に設けた機械加工用液の投入口と、その下流側に設けた切粉の排出口と、を備え、
前記切粉搬送部材は、前記投入口から前記排出口に向けて機械加工用液中の切粉を搬送し、
前記マグネットローラは、前記搬送路での切粉の搬送方向と並行な配置形態で前記切粉捕集槽内に位置する固定軸と、前記固定軸の外周面に取付けた複数のマグネット片と、前記固定軸及び前記複数のマグネット片からなるマグネット棒の外周面を覆う非磁性の回転被覆筒と、前記回転被覆筒をその軸心周りに回転駆動する駆動手段と、を備え、その回転被覆筒の外周面に前記第１の切粉掻取部材が当接する構造になっているとともに、前記複数のマグネット片のうち前記第１の切粉掻取部材に隣接するマグネット片は、それ以外のマグネット片に比べて磁力が弱くなるように設定してあり、
前記切粉捕集槽は、前記連通部付近において前記搬送路の側壁から前記マグネットローラの方向に向かって傾斜した斜面と、この斜面に連続する底面とを備えるとともに、その底面及び斜面と前記液回収ケースの外面との間に、前記第２の切粉掻取部材の移動を可能とする隙間部を有し、
前記隙間流路は、前記液回収ケースの端部側を流入口として前記機械加工用液が流入する構造になっており、
前記液回収ケースは、前記マグネットローラの外周下部面と対向する位置で前記隙間流路に開口している開口部と、この開口部から液回収ケース内部に流入した機械加工用液を外部へ排出するための機械加工用液の排出口と、を有し、
前記邪魔板は、その幅が前記連通部の幅より狭く、その形状が前記切粉捕集槽の斜面から前記連通部を抜けて前記搬送路上に突出した形状になっていて、かつ、前記連通部の両側のうち前記投入口より遠い一方側に片寄せて設置されることにより、その設置範囲内では前記搬送路から前記連通部を介する前記切粉捕集槽への機械加工用液の流入を阻止し、その設置以外の範囲は流入口として前記流入を許容する手段であり、
前記第２の切粉掻取部材は、前記連通部に向かって前記切粉捕集槽の前記隙間部を移動することにより、前記切粉捕集槽の底面や斜面から切粉を掻き取り、掻き取った切粉を前記邪魔板から前記搬送路へ送り出す手段として機能すること
を特徴とする濾過装置。 A filtration device for removing chips from a machining fluid containing chips,
A conveying path for the chips;
A chip conveying member provided in the conveying path;
A magnet roller arranged side by side alongside the conveying path;
A chip collection tank containing the magnet roller;
A liquid recovery case facing the outer peripheral lower surface of the magnet roller;
A gap channel formed by a gap between the magnet roller and the liquid recovery case;
A first chip scraping member in contact with the vicinity of the outer peripheral upper surface of the magnet roller;
A communicating portion communicating with the chip collecting tank from the conveying path;
A baffle plate installed in the communication part;
A second chip scraping member provided in the chip collection tank,
The conveying path includes a machining fluid inlet provided on the upstream side thereof, and a chip outlet provided on the downstream side thereof,
The chip conveying member conveys the chip in the machining liquid from the charging port to the discharging port,
The magnet roller has a fixed shaft located in the chip collection tank in an arrangement form parallel to the chip conveying direction in the conveying path, and a plurality of magnet pieces attached to the outer peripheral surface of the fixed shaft, A non-magnetic rotating coated cylinder that covers an outer peripheral surface of the fixed shaft and the magnet rod composed of the plurality of magnet pieces, and a driving unit that rotationally drives the rotating coated cylinder about its axis, the rotating coated cylinder The first chip scraping member is in contact with the outer peripheral surface of the magnet, and the magnet pieces adjacent to the first chip scraping member among the plurality of magnet pieces are other magnets. It is set so that the magnetic force is weaker than that of the piece,
The chip collection tank includes a slope that is inclined from the side wall of the transport path toward the magnet roller in the vicinity of the communication portion, and a bottom face that is continuous with the slope, and the bottom face, the slope, and the liquid Between the outer surface of the collection case, having a gap portion that enables the movement of the second chip scraping member,
The gap flow path has a structure in which the machining liquid flows in with an end side of the liquid recovery case as an inlet.
The liquid recovery case discharges the machining fluid that has flowed into the liquid recovery case from the opening that is open to the gap flow path at a position facing the lower outer peripheral surface of the magnet roller. A discharge port for machining fluid for
The baffle plate has a width narrower than that of the communication portion, and the shape of the baffle plate protrudes from the slope of the chip collection tank through the communication portion and protrudes onto the conveyance path, and the communication By being shifted to one side farther than the charging port from both sides of the part, the machining fluid flows into the chip collection tank from the conveyance path via the communication part within the installation range. The range other than the installation is a means for allowing the inflow as an inflow port,
The second chip scraping member scrapes off the chips from the bottom surface and the slope of the chip collection tank by moving the gap portion of the chip collection tank toward the communication part, A filtering device, which functions as a means for sending the scraped scraps from the baffle plate to the transport path.

前記第２の切粉掻取部材は、前記マグネットローラの外周を一回りする周回軌道に乗って、前記切粉捕集槽の前記隙間部を移動し、
前記切粉捕集槽の底面と前記液回収ケースは、前記第２の切粉掻取部材の周回軌道に合わせて円弧状に形成したこと
を特徴とする請求項２に記載の濾過装置。 The second chip scraping member rides on a circular orbit that goes around the outer periphery of the magnet roller, moves the gap portion of the chip collection tank,
The filtration device according to claim 2, wherein the bottom surface of the chip collection tank and the liquid recovery case are formed in an arc shape in accordance with a circular orbit of the second chip scraping member.

前記濾過装置は、更に、前記流入口から前記切粉捕集槽に流入した機械加工用液中の切粉を磁力で前記切粉捕集槽の底面や斜面に定着させる手段として、前記切粉捕集槽の外壁面に壁面マグネットを備えたこと
を特徴とする請求項２又は３に記載の濾過装置。 The filtration device further includes the chip as a means for fixing the chips in the machining fluid flowing into the chip collection tank from the inlet to the bottom surface or the slope of the chip collection tank by magnetic force. The filtration device according to claim 2 or 3, wherein a wall magnet is provided on the outer wall surface of the collection tank.

前記流入口の周辺は、前記壁面マグネットが存在しないマグネット不存在部として構成することにより、壁面マグネットの磁力で機械加工用液中の切粉が切粉捕集槽の斜面上縁付近に定着する現象を抑制してあること
を特徴とする請求項４に記載の濾過装置。 The periphery of the inlet is configured as a magnet-free portion where the wall magnet does not exist, so that the chips in the machining fluid are fixed near the upper edge of the slope of the chip collection tank by the magnetic force of the wall magnet. The filtration device according to claim 4, wherein the phenomenon is suppressed.